2x 3 15 5 July 8, 2019 16 32 64 128 2x 3 15 5x 2x 15 3 5 x 4 2x 3 )- 5 15 2x 3 6x 2 5x 15 2x 5 3 7x 15 5 5 2x 3 15 2 15 2x 3 )= 13 5x 3 2x 5 6x 15 5 2x 3 )= 10x 15 2x 3 5x 2 28x 15 0 2x x 3 )+ 5x 15 0 2x 3 1 7x 15 5 3 2x 15 )= 15 11x 50 2 3 2x 5 15 x 2 5 2x 3 )= 15 find x