Question

I need help with my homework this is hard pls help thx!
z=m-x solve for x

Answer 1

-z + m = x

Explanation:

z = m-x

subtract the m from both sides

z-m = -x

you can't have a negative x so multiply everything by -1

-1(z-m = -x)

-z + m = x

Answer 2

x = m - z

Explanation:

z = m - x add x to both sides

z + x = m - x + x

z + x = m subtract z from both sides

z - z + x = m - z

x = m - z