5 4x 7 )- 2 3x 1 )=- 5 July 8, 2019 16 32 64 128 3 2x 5 )+ 2 4x 7 )= 5 3x 1 5x 7 )( 3x 2 )-( 4x 5 )( 6x 1 5 x 7 = 35