Question

What’s the answer for this problem !

Answer 1

Brett is 13 years old.

Explanation:

Both ages are in terms of Julie's age, so let j = Julie's age.

Julie's age = j

Sal's age = 3j + 4

Brett's age = 2j - 5

Sum of ages = 53

j + 3j + 4 + 2j - 5 = 53

6j - 1 = 53

6j = 54

j = 9

Julie is 9 years old.

Brett's age:

2j - 5 = 2(9) - 5 = 18 - 5 = 13

Answer: Brett is 13 years old.