Question

X +y = y-m

what is m

Answer 1

Let's solve

• x+y=y-m
• x=y-y-m
• x=0-m
• x=-m
• m=-x

Done!

Answer 2

m = -x

Explanation:

x +y = y-m

subtract y on both sides which will cancel them out, we are left with

x = -m

multiply both sides by -1 to get rid of the -m

x × -1 = -x, -m × -1 = m

final answer: m = -x