PLZ HELP
What should be done to both sides of the equation in order to solve w - 9 1/2 = 15
A) Subtract 15
B) Add 9 1/2
C) Subtract 9 1/2
D) Add 15

Mariano delivers newspaper. he always puts 3/4 of his weekly earnings in his savings account and then divides the rest equally into 3 piggy banks for spending at the snack shop, the arcade and the subway