How do you do these type problems?:

Question

1/5+M=-2/5

6x+8=32

4(1/2X+1/2)=2X+2

3-Y=X
(Is ^ -3 on both sides?)

Answer 1

1/5+M=-2/5

M = -2/5 - 1/5
M = -3/5
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4(1/2X+1/2)=2X+2

2x + 2 = 2x + 2
This problem cannot be solved.
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3-Y=X
(Is ^ -3 on both sides?)
There is no exponent in this problem.