3x 8 4y 5 7x 12 3y 10 July 8, 2019 16 32 64 128 3) 3 7x - 1 8 = 5 2 - 3 3x 4) - 8 4 - 7 5x = 12 5x + 11 6 4x - y = 7 8 8x - 3y = 18 6
