4(5x - 7) 3x 13 July 8, 2019 16 32 64 128 4 5x 7 )+ 3x 13 13x 2 5x 7 3x 4 180 3x 7 5x 4 13 6 13x 2 5x 7 3x 4 5 x 7 = 35