1 4x 2=4 6-1 2 July 8, 2019 16 32 64 128 1 4x 2 4 6 1 2x 2x 6 1 4 3 4x 7 1 2 4 1 6 3 4x 5 2 3 1 2x 2x 1 4 1 4x 2 3x 7 6 1 4x+2=4 6-1 2 1 - 2 = 4
