ann is 20 years older than her daughter faye. three years from now she will be six times as old as her daughter. find their present ages.
This is my work: ( i'm not sure if it's correct )
Now 3 yrs from now
Ann A A+3
Faye 6A 6A+3
7a+21 = 6A+3
-6A -6A
A+21=3
A=24 :(
did it here:
http://www.jiskha.com/display.cgi?id=1455540334