5 x 6 y 13 3 x 4 y 7 July 8, 2019 16 32 64 128 5 x 6 y 13 3 by x 4 y is equal to 7 5 x 7 = 35 4) - 6 + x = - 2 5) y + 7 = - 13 6) x + 11 = - 4 6xy - 4y + 6 - 9x
