Answer
Step-by-step explanation
Although, the question asks us to solve for h, the incomplete question would make that impossible. So, what we can do is just to simplify the expression.
-10 + 19h + 9h + 10h =
38h - 10 =
If we assume that the expression is equal to 0
38h - 10 = 0
38h = 10
Divide both sides by 38
(38h/38) = (10/38)
h = 0.263.
I hope this helps you in some way in answering the full, correct question.