J - A = 4 ("Jordan is 4 years older than ava") J + A = 20 ("The sum of Ava And Jordan age is 20") ------------------------ Add the two equation 2J = 4 + 20 = 24 ====> J = = 12. Then A = 20-J = 20 - 12 = 8. Answer. A is 8. J is 12.