七年级50道数学解方程(七年级数学解方程题100道带答案)
七年级50道数学解方程(七年级数学解方程题100道带答案)

谁知道七年级解方程的题目有哪些啊?

七年级12道解方程带过程的

[1]2-(1-y)=-2

2-1+y=-2

y=-2-2+1=-3

(2)5-(x-1)=3-3x

5-x+1=3-3x

2x=3-1-5

2x=-3

x=-1.5

(3)3-2(2x+1)=2(x-3)

3-4x-2=2x-6

6x=3-2+6

6x=7

x=7/6

(4)4x-3(20-x)=6x-7(9-x)

4x-60+3x=6x-63+7x

7x-60=13x-63

6x=3

x=0.5

(5)12(2-3x)=4x+4

24-36x=4x+4

40x=20

x=0.5

(6)2(200-15x)=70+25x

400-30x=70+25x

55x=330

x=6

(7)4x-3(20-x)+4=0

4x-60+3x+4=0

7x=60-4=56

x=8

(8)1-3(8-x)=-2(15-2x)

1-24+3x=-30+4x

x=1-24+30

x=7

(9)2-(1-y)=-2

2-1+y=-2

1+y=-2

y=-3

(10)5-(x-1)=3-3x

5-x+1=3-3x

6-x=3-3x

-x+3x=3-6

x=-1.5

(11)1/8x+1/9=1/10x+1/11

1/8x-1/10x=1/11-1/9

1/40x=-2/99

x=-80/99

(12)-5x+4=3-2x

-5x+2x=3-4

-3x=-1

x=3/1

初一数学解方程

20道初一数学去分母解方程带过程答案

“/”表示除以

(1)x/3 - x-4/3=1 2x-3x+12=6 -x=-6 x=6

(2)x/3=1+ 5-3x/2 2x=6+3(5-3x) 11x=21 x=21/11

(3)x-3/3- 1/2=4 2x-9=24 2x=33 x=33/2

(4)3y-1/4 - 1=5y-7/6 9y-3-12=10y-14 -y=1 y=-1

(5)2x/3+ x/2=28 4x+3x=28 7x=28 x=4

(6)5-x/4 - 6-2x/4=10 5-x-6+2x=10 x=11

(7)y-2/6 =y/3 +1 y-2=2y+6 -y=8 y=-8

(8)y/3- y-2/6=1 2y-y+2=6 y=4

(9)x/2=x/3 +1 3x=2x+6 x=6

(10)x+1/3=x-2/2 2x-3x=3x-6 -x=-8 x=8

只有这些了,希望对你有帮助!

初一数学解方程去分母

2分之1(x-1)=2-5分之1(x+2)

两边乘10

5(x-1)=20-2(x+2)

5x-5=20-2x-4

5x+2x=20-4+5

7x=21

x=21/7

x=3

七年级数学解方程题100道带答案

2x+17=35

3x-64=11

12+8x=52

0.8x-4.2=2.2

2x+5=10

3x-15=75

4x+4o=320

3x+77=122

5x-1.6=0.6

6x-4=20

10x-0.6=2.4

500-12x=140

1) 66x+17y=3967

25x+y=1200

答案:x=48 y=47

(2) 18x+23y=2303

74x-y=1998

答案:x=27 y=79

(3) 44x+90y=7796

44x+y=3476

答案:x=79 y=48

(4) 76x-66y=4082

30x-y=2940

答案:x=98 y=51

(5) 67x+54y=8546

71x-y=5680

答案:x=80 y=59

(6) 42x-95y=-1410

21x-y=1575

答案:x=75 y=48

(7) 47x-40y=853

34x-y=2006

答案:x=59 y=48

(8) 19x-32y=-1786

75x+y=4950

答案:x=66 y=95

(9) 97x+24y=7202

58x-y=2900

答案:x=50 y=98

(10) 42x+85y=6362

63x-y=1638

答案:x=26 y=62

(11) 85x-92y=-2518

27x-y=486

答案:x=18 y=44

(12) 79x+40y=2419

56x-y=1176

答案:x=21 y=19

(13) 80x-87y=2156

22x-y=880

答案:x=40 y=12

(14) 32x+62y=5134

57x+y=2850

答案:x=50 y=57

(15) 83x-49y=82

59x+y=2183

答案:x=37 y=61

(16) 91x+70y=5845

95x-y=4275

答案:x=45 y=25

(17) 29x+44y=5281

88x-y=3608

答案:x=41 y=93

(18) 25x-95y=-4355

40x-y=2000

答案:x=50 y=59

(19) 54x+68y=3284

78x+y=1404

答案:x=18 y=34

(20) 70x+13y=3520

52x+y=2132

答案:x=41 y=50

(21) 48x-54y=-3186

24x+y=1080

答案:x=45 y=99

(22) 36x+77y=7619

47x-y=799

答案:x=17 y=91

(23) 13x-42y=-2717

31x-y=1333

答案:x=43 y=78

(24) 28x+28y=3332

52x-y=4628

答案:x=89 y=30

(25) 62x-98y=-2564

46x-y=2024

答案:x=44 y=54

(26) 79x-76y=-4388

26x-y=832

答案:x=32 y=91

(27) 63x-40y=-821

42x-y=546

答案:x=13 y=41

(28) 69x-96y=-1209

42x+y=3822

答案:x=91 y=78

(29) 85x+67y=7338

11x+y=308

答案:x=28 y=74

(30) 78x+74y=12928

14x+y=1218

答案:x=87 y=83

(31) 39x+42y=5331

59x-y=5841

答案:x=99 y=35

(32) 29x+18y=1916

58x+y=2320

答案:x=40 y=42

(33) 40x+31y=6043

45x-y=3555

答案:x=79 y=93

(34) 47x+50y=8598

45x+y=3780

答案:x=84 y=93

(35) 45x-30y=-1455

29x-y=725

答案:x=25 y=86

(36) 11x-43y=-1361

47x+y=799

答案:x=17 y=36

(37) 33x+59y=3254

94x+y=1034

答案:x=11 y=49

(38) 89x-74y=-2735

68x+y=1020

答案:x=15 y=55

(39) 94x+71y=7517

78x+y=3822

答案:x=49 y=41

(40) 28x-62y=-4934

46x+y=552

答案:x=12 y=85

(41) 75x+43y=8472

17x-y=1394

答案:x=82 y=54

(42) 41x-38y=-1180

29x+y=1450

答案:x=50 y=85

(43) 22x-59y=824

63x+y=4725

答案:x=75 y=14

(44) 95x-56y=-401

90x+y=1530

答案:x=17 y=36

(45) 93x-52y=-852

29x+y=464

答案:x=16 y=45

(46) 93x+12y=8823

54x+y=4914

答案:x=91 y=30

(47) 21x-63y=84

20x+y=1880

答案:x=94 y=30

(48) 48x+93y=9756

38x-y=950

答案:x=25 y=92

(49) 99x-67y=4011

75x-y=5475

答案:x=73 y=48

(50) 83x+64y=9291

90x-y=3690

答案:x=41 y=92

3X+18=52 x=34/3

4Y+11=22 y=11/4

3X*9=5 x=5/27

8Z/6=48 z=36

3X+7=59 x=52/3

4Y-69=81 y=75/4

8X*6=5 x=5/48

7Z/9=4 y=63/7

15X+8-5X=54 x=4.6

5Y*5=27 y=27/40

8x+2=10 x=1

x*8=88 x=11

y-90=1 y=91

2x-98=2 x=50

6x*6=12 x=1/3

5-6=5x x=-1/5

6*x=42 x=7

55-y=33 y=22

11*3x=60 x=20/11

8-y=2 y=-6

1.x+2=3

2.x+32=33

3.x+6=18

4.4+x=47

5.19-x=8

6.98-x=13

7.66-x=10

8.5x=10

9.3x=27

10.7x=7

11.8x=8

12.9x=9

13.10x=100

14.66x=660

15.7x=49

16.2x=4

17.3x=9

18.4x=16

19.5x=25

20.6x=36

21.8x=64

22.9x=81

23.10x=100

24.11x=121

25.12x=144

26.13x=169

27.14x=196

28.15x=225

29.16x=256

30.17x=289

31.18x=324

32.19x=361

33.20x=400

31.21x=441

32.22x=484

33.111x=12321

34.1111x=1234321

35.11111x=123454321

36.111111x=12345654321

37.46/x=23

38.64/x=8

39.99/x=11

40.1235467564x=0

41.2x+1= -2+x

42.4x-3(20-x)=3

43..-2(x-1)=4

44.3X+189=521

45.4Y+119=22 5

46.3X+77=59

47.4Y-6985=81

48.X=0.1

49.5X=55.5

50.Y=50-85

(-8)-(-1) =-7

45+(-30) =15

-1.5-(-11.5) =10

-0.25-(-0.5) =0.25

15-【1-(-20-4)】 =-10

-40-28-(-19)+(-24) =-73

22.54+(-4.4)+(-12.54)+4.4 =10

(2/3{三分只二 “/”是分数线}-1/2)-(1/3-5/6)=2/3

2.4-(-3/5)+(-3.1)+4/5 =0.7

(-6/13)+(-7/13)-(-2) =1

3/4-(-11/6)+(-7/3) =1/4

11+(-22)-3×(-11) =22

(-0.1)÷0.5×(-100) =20

(-2)的3次方-9 =-17

23÷[-9-(-4)] =-23/5

(3/4-7/8)÷(-7/8) =1/7

(-60)×(3/4+5/6)=-95

[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

5+21*8/2-6-59

68/21-8-11*8+61

-2/9-7/9-56

4.6-(-3/4+1.6-4-3/4)

1/2+3+5/6-7/12

[2/3-4-1/4*(-0.4)]/1/3+2

22+(-4)+(-2)+4*3

-2*8-8*1/2+8/1/8

(2/3+1/2)/(-1/12)*(-12)

(-28)/(-6+4)+(-1)

2/(-2)+0/7-(-8)*(-2)

(1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

-1+2-3+4-5+6-7

-50-28+(-24)-(-22)

-19.8-(-20.3)-(+20.2)-10.8

0.25- +(-1 )-(+3 )

-1-〔1-(1-0.6÷3)〕×〔2-(-3)×(-4)〕

0÷(-4)-42-(-8)÷(-1)3

-32-(-3) 2-(-3)3+(-1)6

3×(-2)2+(-2×3)2+(-2+3)2

(-12)÷4×(-6)÷2

(-12)÷4×(-6)×2

75÷〔138÷(100-54)〕

85×(95-1440÷24)

80400-(4300+870÷15)

240×78÷(154-115)

1437×27+27×563

〔75-(12+18)〕÷15

2160÷〔(83-79)×18〕

280+840÷24×5

325÷13×(266-250)

85×(95-1440÷24)

58870÷(105+20×2)

1437×27+27×563

81432÷(13×52+78)

[37.85-(7.85+6.4)] ×30

156×[(17.7-7.2)÷3]

(947-599)+76×64

36×(913-276÷23)

-(3.4 1.25×2.4)

0.8×〔15.5-(3.21 5.79)〕

(31.8 3.2×4)÷5

194-64.8÷1.8×0.9 36.72÷4.25×9.9

3.416÷(0.016×35)

0.8×[(10-6.76)÷1.2]

(136+64)×(65-345÷23)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(58+37)÷(64-9×5)

812-700÷(9+31×11)

(3.2×1.5+2.5)÷1.6

85+14×(14+208÷26)

120-36×4÷18+35

(284+16)×(512-8208÷18)

9.72×1.6-18.305÷7

4/7÷[1/3×(3/5-3/10)]

(4/5+1/4)÷7/3+7/10

12.78-0÷( 13.4+156.6 )

37.812-700÷(9+31×11)

(136+64)×(65-345÷23)

3.2×(1.5+2.5)÷1.6

85+14×(14+208÷26)

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

(284+16)×(512-8208÷18)

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

120-36×4÷18+35

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)

+4.2×3.74 347+45×2-4160÷52

32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)

[(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6

5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6

3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6

5.8×(3.87-0.13)+4.2×3.74

33.02-(148.4-90.85)÷2.5

初一数学解方程100道及答案及过程

20道初一数学去分母解方程带过程答案

“/”表示除以

(1)x/3 - x-4/3=1 2x-3x+12=6 -x=-6 x=6

(2)x/3=1+ 5-3x/2 2x=6+3(5-3x) 11x=21 x=21/11

(3)x-3/3- 1/2=4 2x-9=24 2x=33 x=33/2

(4)3y-1/4 - 1=5y-7/6 9y-3-12=10y-14 -y=1 y=-1

(5)2x/3+ x/2=28 4x+3x=28 7x=28 x=4

(6)5-x/4 - 6-2x/4=10 5-x-6+2x=10 x=11

(7)y-2/6 =y/3 +1 y-2=2y+6 -y=8 y=-8

(8)y/3- y-2/6=1 2y-y+2=6 y=4

(9)x/2=x/3 +1 3x=2x+6 x=6

(10)x+1/3=x-2/2 2x-3x=3x-6 -x=-8 x=8

只有这些了,希望对你有帮助!

初一数学解方程去分母

2分之1(x-1)=2-5分之1(x+2)

两边乘10

5(x-1)=20-2(x+2)

5x-5=20-2x-4

5x+2x=20-4+5

7x=21

x=21/7

x=3

七年级下册解方程100道

七年级12道解方程带过程的

[1]2-(1-y)=-2

2-1+y=-2

y=-2-2+1=-3

(2)5-(x-1)=3-3x

5-x+1=3-3x

2x=3-1-5

2x=-3

x=-1.5

(3)3-2(2x+1)=2(x-3)

3-4x-2=2x-6

6x=3-2+6

6x=7

x=7/6

(4)4x-3(20-x)=6x-7(9-x)

4x-60+3x=6x-63+7x

7x-60=13x-63

6x=3

x=0.5

(5)12(2-3x)=4x+4

24-36x=4x+4

40x=20

x=0.5

(6)2(200-15x)=70+25x

400-30x=70+25x

55x=330

x=6

(7)4x-3(20-x)+4=0

4x-60+3x+4=0

7x=60-4=56

x=8

(8)1-3(8-x)=-2(15-2x)

1-24+3x=-30+4x

x=1-24+30

x=7

(9)2-(1-y)=-2

2-1+y=-2

1+y=-2

y=-3

(10)5-(x-1)=3-3x

5-x+1=3-3x

6-x=3-3x

-x+3x=3-6

x=-1.5

(11)1/8x+1/9=1/10x+1/11

1/8x-1/10x=1/11-1/9

1/40x=-2/99

x=-80/99

(12)-5x+4=3-2x

-5x+2x=3-4

-3x=-1

x=3/1 七年级的解方程题目主要涉及一元一次方程的解法,以下是一些示例题目:

1. 解方程:3x +5 =14

2. 解方程:2(x -3) =4

3. 解方程:5 -2x =1

4. 解方程:3x +4 =2x +7

5. 解方程:4(2x -1) =3(2x +1)

6. 解方程:x/2 +3 =5

7. 解方程:2x -3/2 =1/2

8. 解方程:(x -2)/3 =1

9. 解方程:2(3x -4) =3(x -2) +2

10. 解方程:(3x +5)/2 = x -1

这些题目都是基于一元一次方程的基本解法,包括合并同类项、移项、去括号、去分数等步骤。

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谁知道七年级解方程的题目有哪些啊?

七年级12道解方程带过程的

[1]2-(1-y)=-2

2-1+y=-2

y=-2-2+1=-3

(2)5-(x-1)=3-3x

5-x+1=3-3x

2x=3-1-5

2x=-3

x=-1.5

(3)3-2(2x+1)=2(x-3)

3-4x-2=2x-6

6x=3-2+6

6x=7

x=7/6

(4)4x-3(20-x)=6x-7(9-x)

4x-60+3x=6x-63+7x

7x-60=13x-63

6x=3

x=0.5

(5)12(2-3x)=4x+4

24-36x=4x+4

40x=20

x=0.5

(6)2(200-15x)=70+25x

400-30x=70+25x

55x=330

x=6

(7)4x-3(20-x)+4=0

4x-60+3x+4=0

7x=60-4=56

x=8

(8)1-3(8-x)=-2(15-2x)

1-24+3x=-30+4x

x=1-24+30

x=7

(9)2-(1-y)=-2

2-1+y=-2

1+y=-2

y=-3

(10)5-(x-1)=3-3x

5-x+1=3-3x

6-x=3-3x

-x+3x=3-6

x=-1.5

(11)1/8x+1/9=1/10x+1/11

1/8x-1/10x=1/11-1/9

1/40x=-2/99

x=-80/99

(12)-5x+4=3-2x

-5x+2x=3-4

-3x=-1

x=3/1

初一数学解方程

20道初一数学去分母解方程带过程答案

“/”表示除以

(1)x/3 - x-4/3=1 2x-3x+12=6 -x=-6 x=6

(2)x/3=1+ 5-3x/2 2x=6+3(5-3x) 11x=21 x=21/11

(3)x-3/3- 1/2=4 2x-9=24 2x=33 x=33/2

(4)3y-1/4 - 1=5y-7/6 9y-3-12=10y-14 -y=1 y=-1

(5)2x/3+ x/2=28 4x+3x=28 7x=28 x=4

(6)5-x/4 - 6-2x/4=10 5-x-6+2x=10 x=11

(7)y-2/6 =y/3 +1 y-2=2y+6 -y=8 y=-8

(8)y/3- y-2/6=1 2y-y+2=6 y=4

(9)x/2=x/3 +1 3x=2x+6 x=6

(10)x+1/3=x-2/2 2x-3x=3x-6 -x=-8 x=8

只有这些了,希望对你有帮助!

初一数学解方程去分母

2分之1(x-1)=2-5分之1(x+2)

两边乘10

5(x-1)=20-2(x+2)

5x-5=20-2x-4

5x+2x=20-4+5

7x=21

x=21/7

x=3

七年级数学解方程题100道带答案

2x+17=35

3x-64=11

12+8x=52

0.8x-4.2=2.2

2x+5=10

3x-15=75

4x+4o=320

3x+77=122

5x-1.6=0.6

6x-4=20

10x-0.6=2.4

500-12x=140

1) 66x+17y=3967

25x+y=1200

答案:x=48 y=47

(2) 18x+23y=2303

74x-y=1998

答案:x=27 y=79

(3) 44x+90y=7796

44x+y=3476

答案:x=79 y=48

(4) 76x-66y=4082

30x-y=2940

答案:x=98 y=51

(5) 67x+54y=8546

71x-y=5680

答案:x=80 y=59

(6) 42x-95y=-1410

21x-y=1575

答案:x=75 y=48

(7) 47x-40y=853

34x-y=2006

答案:x=59 y=48

(8) 19x-32y=-1786

75x+y=4950

答案:x=66 y=95

(9) 97x+24y=7202

58x-y=2900

答案:x=50 y=98

(10) 42x+85y=6362

63x-y=1638

答案:x=26 y=62

(11) 85x-92y=-2518

27x-y=486

答案:x=18 y=44

(12) 79x+40y=2419

56x-y=1176

答案:x=21 y=19

(13) 80x-87y=2156

22x-y=880

答案:x=40 y=12

(14) 32x+62y=5134

57x+y=2850

答案:x=50 y=57

(15) 83x-49y=82

59x+y=2183

答案:x=37 y=61

(16) 91x+70y=5845

95x-y=4275

答案:x=45 y=25

(17) 29x+44y=5281

88x-y=3608

答案:x=41 y=93

(18) 25x-95y=-4355

40x-y=2000

答案:x=50 y=59

(19) 54x+68y=3284

78x+y=1404

答案:x=18 y=34

(20) 70x+13y=3520

52x+y=2132

答案:x=41 y=50

(21) 48x-54y=-3186

24x+y=1080

答案:x=45 y=99

(22) 36x+77y=7619

47x-y=799

答案:x=17 y=91

(23) 13x-42y=-2717

31x-y=1333

答案:x=43 y=78

(24) 28x+28y=3332

52x-y=4628

答案:x=89 y=30

(25) 62x-98y=-2564

46x-y=2024

答案:x=44 y=54

(26) 79x-76y=-4388

26x-y=832

答案:x=32 y=91

(27) 63x-40y=-821

42x-y=546

答案:x=13 y=41

(28) 69x-96y=-1209

42x+y=3822

答案:x=91 y=78

(29) 85x+67y=7338

11x+y=308

答案:x=28 y=74

(30) 78x+74y=12928

14x+y=1218

答案:x=87 y=83

(31) 39x+42y=5331

59x-y=5841

答案:x=99 y=35

(32) 29x+18y=1916

58x+y=2320

答案:x=40 y=42

(33) 40x+31y=6043

45x-y=3555

答案:x=79 y=93

(34) 47x+50y=8598

45x+y=3780

答案:x=84 y=93

(35) 45x-30y=-1455

29x-y=725

答案:x=25 y=86

(36) 11x-43y=-1361

47x+y=799

答案:x=17 y=36

(37) 33x+59y=3254

94x+y=1034

答案:x=11 y=49

(38) 89x-74y=-2735

68x+y=1020

答案:x=15 y=55

(39) 94x+71y=7517

78x+y=3822

答案:x=49 y=41

(40) 28x-62y=-4934

46x+y=552

答案:x=12 y=85

(41) 75x+43y=8472

17x-y=1394

答案:x=82 y=54

(42) 41x-38y=-1180

29x+y=1450

答案:x=50 y=85

(43) 22x-59y=824

63x+y=4725

答案:x=75 y=14

(44) 95x-56y=-401

90x+y=1530

答案:x=17 y=36

(45) 93x-52y=-852

29x+y=464

答案:x=16 y=45

(46) 93x+12y=8823

54x+y=4914

答案:x=91 y=30

(47) 21x-63y=84

20x+y=1880

答案:x=94 y=30

(48) 48x+93y=9756

38x-y=950

答案:x=25 y=92

(49) 99x-67y=4011

75x-y=5475

答案:x=73 y=48

(50) 83x+64y=9291

90x-y=3690

答案:x=41 y=92

3X+18=52 x=34/3

4Y+11=22 y=11/4

3X*9=5 x=5/27

8Z/6=48 z=36

3X+7=59 x=52/3

4Y-69=81 y=75/4

8X*6=5 x=5/48

7Z/9=4 y=63/7

15X+8-5X=54 x=4.6

5Y*5=27 y=27/40

8x+2=10 x=1

x*8=88 x=11

y-90=1 y=91

2x-98=2 x=50

6x*6=12 x=1/3

5-6=5x x=-1/5

6*x=42 x=7

55-y=33 y=22

11*3x=60 x=20/11

8-y=2 y=-6

1.x+2=3

2.x+32=33

3.x+6=18

4.4+x=47

5.19-x=8

6.98-x=13

7.66-x=10

8.5x=10

9.3x=27

10.7x=7

11.8x=8

12.9x=9

13.10x=100

14.66x=660

15.7x=49

16.2x=4

17.3x=9

18.4x=16

19.5x=25

20.6x=36

21.8x=64

22.9x=81

23.10x=100

24.11x=121

25.12x=144

26.13x=169

27.14x=196

28.15x=225

29.16x=256

30.17x=289

31.18x=324

32.19x=361

33.20x=400

31.21x=441

32.22x=484

33.111x=12321

34.1111x=1234321

35.11111x=123454321

36.111111x=12345654321

37.46/x=23

38.64/x=8

39.99/x=11

40.1235467564x=0

41.2x+1= -2+x

42.4x-3(20-x)=3

43..-2(x-1)=4

44.3X+189=521

45.4Y+119=22 5

46.3X+77=59

47.4Y-6985=81

48.X=0.1

49.5X=55.5

50.Y=50-85

(-8)-(-1) =-7

45+(-30) =15

-1.5-(-11.5) =10

-0.25-(-0.5) =0.25

15-【1-(-20-4)】 =-10

-40-28-(-19)+(-24) =-73

22.54+(-4.4)+(-12.54)+4.4 =10

(2/3{三分只二 “/”是分数线}-1/2)-(1/3-5/6)=2/3

2.4-(-3/5)+(-3.1)+4/5 =0.7

(-6/13)+(-7/13)-(-2) =1

3/4-(-11/6)+(-7/3) =1/4

11+(-22)-3×(-11) =22

(-0.1)÷0.5×(-100) =20

(-2)的3次方-9 =-17

23÷[-9-(-4)] =-23/5

(3/4-7/8)÷(-7/8) =1/7

(-60)×(3/4+5/6)=-95

[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

5+21*8/2-6-59

68/21-8-11*8+61

-2/9-7/9-56

4.6-(-3/4+1.6-4-3/4)

1/2+3+5/6-7/12

[2/3-4-1/4*(-0.4)]/1/3+2

22+(-4)+(-2)+4*3

-2*8-8*1/2+8/1/8

(2/3+1/2)/(-1/12)*(-12)

(-28)/(-6+4)+(-1)

2/(-2)+0/7-(-8)*(-2)

(1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

-1+2-3+4-5+6-7

-50-28+(-24)-(-22)

-19.8-(-20.3)-(+20.2)-10.8

0.25- +(-1 )-(+3 )

-1-〔1-(1-0.6÷3)〕×〔2-(-3)×(-4)〕

0÷(-4)-42-(-8)÷(-1)3

-32-(-3) 2-(-3)3+(-1)6

3×(-2)2+(-2×3)2+(-2+3)2

(-12)÷4×(-6)÷2

(-12)÷4×(-6)×2

75÷〔138÷(100-54)〕

85×(95-1440÷24)

80400-(4300+870÷15)

240×78÷(154-115)

1437×27+27×563

〔75-(12+18)〕÷15

2160÷〔(83-79)×18〕

280+840÷24×5

325÷13×(266-250)

85×(95-1440÷24)

58870÷(105+20×2)

1437×27+27×563

81432÷(13×52+78)

[37.85-(7.85+6.4)] ×30

156×[(17.7-7.2)÷3]

(947-599)+76×64

36×(913-276÷23)

-(3.4 1.25×2.4)

0.8×〔15.5-(3.21 5.79)〕

(31.8 3.2×4)÷5

194-64.8÷1.8×0.9 36.72÷4.25×9.9

3.416÷(0.016×35)

0.8×[(10-6.76)÷1.2]

(136+64)×(65-345÷23)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(58+37)÷(64-9×5)

812-700÷(9+31×11)

(3.2×1.5+2.5)÷1.6

85+14×(14+208÷26)

120-36×4÷18+35

(284+16)×(512-8208÷18)

9.72×1.6-18.305÷7

4/7÷[1/3×(3/5-3/10)]

(4/5+1/4)÷7/3+7/10

12.78-0÷( 13.4+156.6 )

37.812-700÷(9+31×11)

(136+64)×(65-345÷23)

3.2×(1.5+2.5)÷1.6

85+14×(14+208÷26)

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

(284+16)×(512-8208÷18)

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

120-36×4÷18+35

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)

+4.2×3.74 347+45×2-4160÷52

32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)

[(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6

5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6

3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6

5.8×(3.87-0.13)+4.2×3.74

33.02-(148.4-90.85)÷2.5

初一数学解方程100道及答案及过程

20道初一数学去分母解方程带过程答案

“/”表示除以

(1)x/3 - x-4/3=1 2x-3x+12=6 -x=-6 x=6

(2)x/3=1+ 5-3x/2 2x=6+3(5-3x) 11x=21 x=21/11

(3)x-3/3- 1/2=4 2x-9=24 2x=33 x=33/2

(4)3y-1/4 - 1=5y-7/6 9y-3-12=10y-14 -y=1 y=-1

(5)2x/3+ x/2=28 4x+3x=28 7x=28 x=4

(6)5-x/4 - 6-2x/4=10 5-x-6+2x=10 x=11

(7)y-2/6 =y/3 +1 y-2=2y+6 -y=8 y=-8

(8)y/3- y-2/6=1 2y-y+2=6 y=4

(9)x/2=x/3 +1 3x=2x+6 x=6

(10)x+1/3=x-2/2 2x-3x=3x-6 -x=-8 x=8

只有这些了,希望对你有帮助!

初一数学解方程去分母

2分之1(x-1)=2-5分之1(x+2)

两边乘10

5(x-1)=20-2(x+2)

5x-5=20-2x-4

5x+2x=20-4+5

7x=21

x=21/7

x=3

七年级下册解方程100道

七年级12道解方程带过程的

[1]2-(1-y)=-2

2-1+y=-2

y=-2-2+1=-3

(2)5-(x-1)=3-3x

5-x+1=3-3x

2x=3-1-5

2x=-3

x=-1.5

(3)3-2(2x+1)=2(x-3)

3-4x-2=2x-6

6x=3-2+6

6x=7

x=7/6

(4)4x-3(20-x)=6x-7(9-x)

4x-60+3x=6x-63+7x

7x-60=13x-63

6x=3

x=0.5

(5)12(2-3x)=4x+4

24-36x=4x+4

40x=20

x=0.5

(6)2(200-15x)=70+25x

400-30x=70+25x

55x=330

x=6

(7)4x-3(20-x)+4=0

4x-60+3x+4=0

7x=60-4=56

x=8

(8)1-3(8-x)=-2(15-2x)

1-24+3x=-30+4x

x=1-24+30

x=7

(9)2-(1-y)=-2

2-1+y=-2

1+y=-2

y=-3

(10)5-(x-1)=3-3x

5-x+1=3-3x

6-x=3-3x

-x+3x=3-6

x=-1.5

(11)1/8x+1/9=1/10x+1/11

1/8x-1/10x=1/11-1/9

1/40x=-2/99

x=-80/99

(12)-5x+4=3-2x

-5x+2x=3-4

-3x=-1

x=3/1 七年级的解方程题目主要涉及一元一次方程的解法,以下是一些示例题目:

1. 解方程:3x +5 =14

2. 解方程:2(x -3) =4

3. 解方程:5 -2x =1

4. 解方程:3x +4 =2x +7

5. 解方程:4(2x -1) =3(2x +1)

6. 解方程:x/2 +3 =5

7. 解方程:2x -3/2 =1/2

8. 解方程:(x -2)/3 =1

9. 解方程:2(3x -4) =3(x -2) +2

10. 解方程:(3x +5)/2 = x -1

这些题目都是基于一元一次方程的基本解法,包括合并同类项、移项、去括号、去分数等步骤。

七年级50道数学解方程(七年级数学解方程题100道带答案)