7y 4 9 8 2y 6 3y 3 4 July 8, 2019 16 32 64 128 6xy - 4y + 6 - 9x 4 5(-8y - 7) - 3 9(6 - 9y) = 7.9.1) 3y ^ 2 + 7y + 4 = 0 3) 9y ^ 2 - 6y + 1 = 0 4 6/7+(y-8 3/7)=9 2/7
