3 5 x 4 4 3 7x 3 20 July 8, 2019 16 32 64 128 3 x-5=x+3 5 x 7 = 35 3(3x + 5) - 4(3x - 5) = 0 7(5 - x) + 2 = 5(6 - x) + 1