7 x 3 21 July 8, 2019 16 32 64 128 7 x 3 21 meme 7 х 3 21 7 - 7x 3 = 21 X 7 3 216 7 3 x 21 4 2 7 x 3 21 7 9 x 3 21 7 x 3 )= 7x 21 7 9 х 3 21 7x x 3 21 3 7 x 21 1 3 7 x 14 21 21 2 7 x 3 )= 1 7 3 x 21 5 7 8 x 3 21
