4 6 0 6y 0 3y 2 3 July 8, 2019 16 32 64 128 4 6+0 6y=0 3y-2 3 0 3(6 - 3y) = 4 5 - 0 8(y - 9) 0 4(6 - 4y) = 0 5(7 - 3y) - 1 9