Question 49146
Shirley's age = 2x
Hary's age = x
4 years ago Shirley's age was = 2x-4
Hary's age was = x-4
EQUATION:
3(x-4)=2x-4
3x-12=2x-4
x=8
2(8)=16
8-4=4
16-4=12
Hence, SHirley was 12 years old, and Hary was 4 years old four years ago.
Paul.