In two years, Winston who is eight years older than Xavier, will be twice as old as Xavier. How old is each one now?

W=winston's age

x=xavier's age

winston is 8 years older than xavier

w=8+x

in 2 years, winston will be twice as old as xavier

w+2=2 (x+2)

we have

w=8+x and

w+2=2 (x+2)

subsitute 8+x for w

w+2=2 (w+2)

8+x+2=2 (x+2)

x+10=2 (x+2)

x+10=2x+4

minus x both sides

10=x+4

minus 4 both sides

6=x

sub back

w=8+x

w=8+6

w=14

winston is 14 years old now

xavier is 6 years old now