5 x 1 )- 2 x 7 )= 13 July 8, 2019 16 32 64 128 5 8 x 1 13 15 x 2 2 7 If 5 x 1 )- 2 x 7 )= 13 then x 2x 1 3 5x 2 7 x 13 13 2 1 x )= 8x 5 x 7 1 13 7 2 x 5 x 11 2 x 13 5 x 2 )- 4 13 7 x 1 5 x 7 = 35 5 x 5 x 5 x 5 x 5 5(x-13 2)=72 2
