Question

a = m2^-1 (m1 a) -g

solve for acceleartion it's the same post below they cancel out

Answer 1

Your math is very weak.

Ft = m1 a

m2 a = m2 g - Ft

then you can solve for a.

m2a=m2g-m1a
m2a+m1a=m2g
a= m2g/(m1+m2)

I recommend you get a tutor to help you with the math.

Answer 2

I was taking upwards in the y direction positve and downwards in the y dierction negetive my bad