Question 321959
Zoe's age be x
Roger will be x+6
..
3  years ago
Zoe was x-3
Roger was x+6-3=x+3 years
x-3 = 2/3 * x+3
3(x-3)=2(x+3)
3x-9=2x+6
x=15  that is Zoes's age
Roger is 15+6 = 21 years