5 7y 8 y 6 4 9 3 8y July 8, 2019 16 32 64 128 4 5(-8y - 7) - 3 9(6 - 9y) = (4 5-y) *5 8=8 7 B) 4 5(- 8y - 7) - 3 9(6-9y)=
