7h + 2 = 3h - 10
First, we need to isolate it so the variables are on one side only.
Subtract 2 from each side.
-10 - 2 = -12
7h = 3h -12
Subtract 3h from each side.
7h - 3h = 4h
4h = -12
Divide -12 by 4
h = -3
2a - 5 = 3a - 3
Isolate the variable
subtract 2a from each side
-5 = a - 3
Add 3 to each side
-2 = a
