Dylan is 33 years old. Erica is 23 years old. How many years ago was Dylan's age 3 times Erica's age?

Answer 1

18 years ago Dylan was three times Erica's age

D=33 E =23

D-x = 3(E-x) = 3E - 3x

33-x = 3(23) -3x = 69-3x

3x-x = 69-33 = 36

2x = 36

x = 36/2 = 18 years ago

18 years ago D= 33-18 = 15 years old

18 years ago E = 23-18 = 5 years old

5 x 3 = 15