2 (- 4x 5 )= 9x 7 July 8, 2019 16 32 64 128 9x 7 3x 2 4x 5 2x 3 1 7x 2 4x 5 9x 10 3 4x 5 )- 7 9x 2 2 3 4x 7 2 =- 9x 5 6 5 x 7 = 35 2 x 2 5 2 9 + (-7 4)