9.X+4/-3=6-x

13.7-5x=10-(6x+7)

15.4a+4=3a-4

17.5b-11=13-b

19.-(x+1)=-2(5-x)

21. 6-3a=9-2(2a+5)

23. 3y+2-2y-5=4y+3

25.-(a+3)=-2(2a+1)-7

27..1/2(b-2)=5

29.4x+12=-2(x+3)

31.9x-5=8x-7

33.4x+8/2 =6

35.y-(y+3)=y+6

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