5x 9 4 10 3 July 8, 2019 16 32 64 128 5x 3 x 9 )+ 10 4 3 5x 9 )= 4 6x 10 9 (- 3x 4 )- 10 5x 4 2x 9 )+ 5x =- 3 10 x 5 + 9 = 14 9x 5