3 x 4y 7 5 x 6y 13 July 8, 2019 16 32 64 128 3 x 4y 7 5 x 6y 13 by cross multiplication method 6) 4 + 3y = 7 5) 3/7 + 4x = 1 6xy - 4y + 6 - 9x 3 5x*(-4/7y)
