3 7y 1 )- 8 64 3 5y 9 July 8, 2019 16 32 64 128 3y = 7 3 - 7y 5y - 3 4 5(-8y - 7) - 3 9(6 - 9y) = 0 3(6 – 3y) = 4 5 - 0 8(y - 9)
