3 1 5x 1 7 July 8, 2019 16 32 64 128 $3 x 1 5x 1 7 2 x )$ 3 5x 1 2 1 7 8x 1 3 5x 1 7 1 3 5x 1 )- 7 3x 1 3 3 1 5x 7 2 3 1 3 4 1 7 5x 3 1 49 3 5x 1 )- 7 6x 10 1 2x 3 5x 1 7 2 5x 1 1 7x 3 8 5 x 7 = 35 3 5/7 x 1 1/13 3 x-5=x+3
