7x 3 9 2x 6 July 8, 2019 16 32 64 128 7x 3 9 9x 2x 6 11 7x 3 2x 9 )= 6x 3 2x 3 7x 9 x 6 5x 3 2x 9 7x 6 6x 3 7x 2 20x 9 )/( 2x 1 2x 7
