2x 9 5x 7 July 8, 2019 16 32 64 128 2x 8 5x )+ 9 x2 7 2x 7 5x 7 4x 9 7 2x 9 6 5x 2 2x 9 )= 5x 72 2x 9 5x 4 7x 9 5x 7x 9 2x 5x 9 78 2x 10 5x 9 2x 7y 5x 8 2x 9 )= 75 5x 3 2x 9 7x 6 Given that 7 2x 9 5x 17 5x 9 7x 6 2x 5x 9 x 2x 7 5x 7y 9 2x 3y =- 37
