12 4-x=16 July 8, 2019 16 32 64 128 12 4 х 16 3 4 x 12 16 4 12 x 16 24 8 12 4 x 16 12 16 4 x 2 X 4 16x 12 0 4 x 12 2x 16 X 4 16x 12 4x4 = 16 12 x 4 = 4 + 4 = 12