7 3 x 9 6 July 8, 2019 16 32 64 128 7 2 x 3 )= 9 6x 7 2 х 3 )= 9 6х 7 1 3 x 9 3 6 9 7 x 3 )= 5 6x 6 7 x 3 9 х 28 30 9 7 x 3 ≥ 5 6x 7 3 х 15 4 5 6 x 9 5 8 7 9 x 3 5 6 6 3 7 x 1 5 9 9 6 7 x 3 9 2 6 2 9 ( 7 8 x )= 3 6 7 6 1 9 x 3 2 7 5 x 3 6 9 7 x 3 63 9 7