X 3 4 7 2 July 8, 2019 16 32 64 128 X 3 7 4 21 3 x 4 )= 7 2x 1 X 3 4 2x 7 5 X 3 4 2x 7 3 x 7 )+ 4 28 2x 3 x 7 )+ 4 22 X 3 5 4 7 2 8 Х 4 3 2 7 2 x 3 )= 4 2x 7 X 1 3 4 2 7 8 X 3 4 7 2 5 7 3 x 4 )= 7 x 2 )+ 12 1 x 3 4 2 7 3 (- x 4 )= 7 2 x )- 6 3 х 4 )= 7 х 2 )+ 12