X 6 7 =- 4 July 8, 2019 16 32 64 128 X 6 7 4 2 6 x 7 48 X 6 )( 4x 7 6 x 7 40 6 x 7 45 6 x 7 49 6 x 7 )= 4x 3 X 6 7 x 4 9 6 x 4 7 8 6 x 4 )+ 7 =- 5 X 6 13 7 48 2 x 6 )+ 7 4x 3 3 6 x 7 4 1 6 x 7 4 X 2 7 6 4 3