Question 305203
let david be x years

2 years ago david was x-2 years

Vincent's age now = 3(x-2)

ages after 3 years

David x+3

Vincent 3(x-2)+3

david age is 2/3 of vincent's age

x+3= 2/3 ( 3 (x-2)+3)

x+3= 2/3 (3x-3)

3(x+3)=2(3x-3)

3x+9=6x-6

3x=15
x=5  David's age

Vincent's age = 3 (x-2)
=3(5-2)
=9 years