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