Yolanda, Bob, and Ahmad have a total of $123 in their wallets. Ahmad has 4 times what Bob has. Yolanda has $9 less than Bob. How does each have?

Answer 1

b represents the amount Bob has

4b represents the amount Ahmad has

b - 9 represents the amount Yolanda has

b + 4b + b - 9 = 123

Can you solve for b and answer?