2 5x 8 1 3 x 7 July 8, 2019 16 32 64 128 2 5x 8 )- 7 4 1 2x )- 3 x 2 2 3 5x )+ 8 7 x )+ 4 x 1 2 5/8 x 1 3/7 2) 7 + x 2 5) 8x - 5 = 11