Answer:
w = -2
Step-by-step explanation:
First you need to remove the parentheses (so distribute 9 through the parentheses)
9w - 36 - 7w = 15w - 10
next you need to collect the like terms
2w - 36 = 15w - 10
then you need to move the terms (so move the variable to the left and change its sign)
2w - 15w = -10 + 36
then you need to collect the like terms and calculate
-13w = 26 (divide both sides by -13)
w = -2
