Lisa, Alonzo, and Tony have a total of $84 in their wallets. Lisa has $9 more than Tony. Alonzo has three times what Tony has. how much does each have?
T =Tony's amount
L = 9+T
A = 3T added together = $ 84
T + 9+T + 3T = 84 Solve for T, the amount Tony has then Lisa has 9+T and Alonzo has 3T