Verified Answer :

Combine like terms.

\(-9h + 12h = 3h\)

-6 + 40 = 34

\(34 + 3h = 22\)

34+3h = 22
-34         -34

3h = -12

\(\frac{3h}{3} = \frac{-12}{3}\)

h = -12/3
h=-4

Answer:  \(h = -4\)

\(-9h - 6 + 12h + 40 = 22 \\ \\ 3h - 6 + 40 = 22 \\ \\ 3h + 34 = 22 \\ \\ 3h = 22 - 34 \\ \\ 3h = -12 \\ \\ h = - \frac{12}{3} \\ \\ h = -4 \\ \\ Answer: \fbox {h = -4}\)