7x 13 2x 5 July 8, 2019 16 32 64 128 7x 13 2 2x 5 )+ 3x 23 13 2x 5 8x 7x 4x 1 7x 52 2x 13 13 2x 5 10 7x 2x 13 7x 5 180 5 2x 2 7x 13 )+ 5 7x 52 3 (- 2x 13 3 2x + 7 = 5x + 13
