3 5 4y 2y 7 6 July 8, 2019 16 32 64 128 2y 3 3y 2 4y 5 6y 7 5 4(3y - 2) - 7 2(2y - 3) = 1 2 3 - 7y 5y - 3 3) (2 - 7y)/6 + (4y + 7)/3 = - y/2
