6 y 5 2 y 7 9 July 8, 2019 16 32 64 128 6 x 7 y 3 5 x 2 y 9 6 7 - y/6 = 5/9 6) y + 2 6/7 = 5 3/7 6) (7 - y)/6 = 5/9
