3 x 3 7 5x 1 July 8, 2019 16 32 64 128 3 x 7 8x 17 5x 3 6 2 2x 3 )( 5x 7 )= 10x x 3 )+ 37 7x 3 3x 7 3 5x 10 3 x 7 )- 5x 10x 3 3 x 7 )= 5x 11 3 x 7 )-( 5x 11 )= 14 3 x 1 )+ 8 x 3 )= 6x 7 5x 5 x 7 = 35 3 x-5=x+3