Question

Forgot what I do next.

Answer 1

7h - 15h + 40 = -72

-8h + 40 = -72

take +40 on the other side of equation

-8h = -72-40

-8h = -112

h = -112/-8

h = 14

Explanation:

Answer 2

you do subtraction than the plus and you got your answer!

Hope this helps :)