X 2 5x 39 July 8, 2019 16 32 64 128 X 2 5x 3900 X 3 7x 2 25x 39 X 3 3x 2 5x 39 2 x 3 )+ 5x =- 39 2x 2 3x 7 x 2 5x 39 3 x-5=x+3
