X 5 x 9 7 July 8, 2019 16 32 64 128 X 5 x 3 9 7 1 x 5 x 9 7 5 x 9 )= x 77 X 9 5 x 7 6 X 9 5 x 7 10 X 5 9 7 95 5 x 9 75 5 x 9 )= 9 x 7 )- 2 X 5 9 71 5 х 9 7 9 x x 5 729 5 x 9 )+ 7 y 2 )- x 3 7 x 5 9 x 1 2