2 7 x 3 15 July 8, 2019 16 32 64 128 2 *(- x 3 7x 15 15 4 2 7 3 x 5 2 15 7 27 x 3 3 11 9 7 x 15 3 3 2 X 3 9x 2 15x 7 0 2 x 7 )= 4 x 3 )+ 15x 15 2 x 1 7 x 15 3 2 x 3 1 7 x 15 3 solution 15 x 2 7 x 3 6 15 1 2 x 7 3 4 2 x 3 1 barabar 7 x 15 3 2 x 3 )- 3 2x 7 )= 15
