6 7x 8 9 July 8, 2019 16 32 64 128 7x 6 9x 8 6 4x 7x 9x 8 Y 6 7x 9 8 7x 8 )+( 6x 6 )+( 9x 4 4 7x 6 )= 3 9x 8 6 7x 9 4 3 8 6 x 7/9 6+7x 8
