5 6 1 3 x 7 8 July 8, 2019 16 32 64 128 1 2 3 x 4 5 6 7 8 5 6 x 9 )+ 3 4 x 1 )- 7 9 8 4 7 x 6 5 1 3 8 3 6 1 7 x 0 x 5 3 8 2x 7 5 6 )- 8 1 2x )-( x 3 )= 0 5 x 7 = 35