7 *) 4x 4 5x 3 7x 1 4x 1 July 8, 2019 16 32 64 128 7x+3 = 5(x - 4) + 1 4x+1 =43-3(7+x) 7x - 5x + x - 4 + 4 = 1 + 3x - 1