7 2x 5 15 July 8, 2019 16 32 64 128 7 2x 5 155 5 2x 7 )= 15x 10 4x 1 15x 7 2x 5 2x 7 3x 5 15 17 2x 7 3x 5 153 7 2x 5 )+ x 7y 15 4y 6x 5 7 2x 15 30 Solve 2x 7 3x 5 15 17 2x 7 3x 5 15 7 2x 5 3and4x 7 15 X 3 2x 5 =- 7 15 2x 5 and 4x 7 15