6 YEARS AGO, JOE WAS 2 YEARS MORE THAN 5 TIMES AS OLD AS HIS DAUGHTER. SIX YEAS FROM NOW, HE WILL BE 11 YEARS MORE THAN TWICE AS OLD AS SHE WILL BE. HOW OLD IS JOE?

Answer 1

J - 6 = 5 (D - 6) + 2 ... J - 6 = 5 D - 28

J + 6 = 2(D + 6) + 11 ... J + 6 = 2 D + 23

5 D - 22 = 2 D + 17

solve for D , substitute back to find J