5 3y 6y 8 7y 2y 16 9 July 8, 2019 16 32 64 128 4 5(-8y - 7) - 3 9(6 - 9y) = 5y + 6 8 = 30 3 5 6 - 7y = - 4(2y - 0 9) + 2 4
