3 10x 7 5x 2 July 8, 2019 16 32 64 128 2 5x 3 10x 4 15 7 20x 3 5x 7 10x 1 2x =- 56 3 5x 7 10x 1 2x 50x 3 10x 2 35x 7 )/( 5x 4 1 2 10x 3 )= 2 5x 7 2 8x 3 5x 2 )= 7 10x 25x 7 10x 5 15x 3 5x 2 5 x 7 = 35