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七年级上册数学解方程题目和答案 可以没过程!!!!!!急!!!!!

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满意回答

2010-02-23 00:067(2x-1)-3(4x-1)=4(3x+2)-1;

(5y+1)+ (1-y)= (9y+1)+ (1-3y);

20%+(1-20%)(320-x)=320×40%

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

2(x-2)-3(4x-1)=9(1-x)

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

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

(1/5)x +1 =(2x+1)/4

(5-2)/2 - (4+x)/3 =1

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

(x-2)/2 - (3x-2)/4 =-1

11x+64-2x=100-9x

15-(8-5x)=7x+(4-3x)

3(x-7)-2[9-4(2-x)]=22

3/2[2/3(1/4x-1)-2]-x=2

2(x-2)-3(4x-1)=9(1-x)

11x+64-2x=100-9x

15-(8-5x)=7x+(4-3x)

3(x-7)-2[9-4(2-x)]=22

3/2[2/3(1/4x-1)-2]-x=2

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

1.7(2x-1)-3(4x-1)=4(3x+2)-1

2.(5y+1)+ (1-y)= (9y+1)+ (1-3y)

3.[ (- 2)-4 ]=x+2

4.20%+(1-20%)(320-x)=320×40%

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

6.2(x-2)-3(4x-1)=9(1-x)

7.11x+64-2x=100-9x

8.15-(8-5x)=7x+(4-3x)

9.3(x-7)-2[9-4(2-x)]=22

10.3/2[2/3(1/4x-1)-2]-x=2

11.5x+1-2x=3x-2

12.3y-4=2y+1

13.87X*13=5

14.7Z/93=41

15.15X+863-65X=54

16.58Y*55=27489

17.2(x+2)+4=9

18.2(x+4)=10

19.3(x-5)=18

20.4x+8=2(x-1)

21.3(x+3)=9+x

22.6(x/2+1)=12

23.9(x+6)=63

24.2+x=2(x-1/2)

25.8x+3(1-x)=-2

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

27.x/3 -5 = (5-x)/2

28.2(x+1) /3=5(x+1) /6 -1

29.(1/5)x +1 =(2x+1)/4

30.(5-2)/2 - (4+x)/3 =1

15x-8(5x+1.5)=18*1.25+x

3X+189=521

4Y+119=22

3X*189=5

8Z/6=458

3X+77=59

4Y-6985=81

87X*13=5

7Z/93=41

15X+863-65X=54

58Y*55=27489

1. 2(x-2)-3(4x-1)=9(1-x)

2. 11x+64-2x=100-9x

3. 15-(8-5x)=7x+(4-3x)

4. 3(x-7)-2[9-4(2-x)]=22

5. 3/2[2/3(1/4x-1)-2]-x=2

6. 2(x-2)+2=x+1

7. 0.4(x-0.2)+1.5=0.7x-0.38

8. 30x-10(10-x)=100

9. 4(x+2)=5(x-2)

10. 120-4(x+5)=25

11. 15x+863-65x=54

12. 12.3(x-2)+1=x-(2x-1)

13. 11x+64-2x=100-9x

14. 14.59+x-25.31=0

15. x-48.32+78.51=80

16. 820-16x=45.5×8

17. (x-6)×7=2x

18. 3x+x=18

19. 0.8+3.2=7.2

20. 12.5-3x=6.5

21. 1.2(x-0.64)=0.54

22. x+12.5=3.5x

23. 8x-22.8=1.2

24. 1\ 50x+10=60

25. 2\ 60x-30=20

26. 3\ 3^20x+50=110

27. 4\ 2x=5x-3

28. 5\ 90=10+x

29. 6\ 90+20x=30

30. 7\ 691+3x=700

1 2x-10.3x=15

2 0.52x-(1-0.52)x=80

3 x/2+3x/2=7

4 3x+7=32-2x

5 3x+5(138-x)=540

6 3x-7(x-1)=3-2(x+3)

7 18x+3x-3=18-2(2x-1)

8 3(20-y)=6y-4(y-11)

9 -(x/4-1)=5

10 3[4(5y-1)-8]=6