Mai, Carlos, and Hong have a total of $112 in their wallets. Carlos has 3 times what Hong has. Mai has $7 more than Hong. How much does each have?

Question

just need some help with this math problem thanks :)

Answer 1

Let x = the amount of money in Hong's wallet

Let 3x = the amount of money in Carlos' wallet

Let x + 7 = the amount of money in Mai's wallet

x + 3x + x + 7 = 112

5x = 105

x = $21

3x = $63

x + 7 = $28