3 9 7 x July 8, 2019 16 32 64 128 3 9 x 7 14 3 9 x 7 8 3 9 x 7 21 9 3 7 x 4 2 3 7 9 x 5 3 7 9 x 2 3 7 9 x 6 3 7 9 x 1 1 2 3 9 x 7 10 3 7 9 x 4 9 3 7 х 5 22 3 1 9 x 7 5x 3 9 x 7 9 7 x 3 )= 5 6x 9 7 x 3 )= 5 4x