Hi, Solve by substitution 4x - 10y = 6 4x + y = 6 4x = 6-y 4x - 10y = 6 (6 - y) - 10y = 6 6 - y - 10y = 6 -11y = 0 y = 0 4x + y = 6 4x + 0 = 6 4x = 6 x = 6/4 Or 3/2 checking our answer 4x - 10y = 6 4*(3/2) + 0 = 6 6 + 0 = 6