3 5x 1 5 3x 2 7 July 8, 2019 16 32 64 128 5 3 5x 2 )= 4 7 3x )+ 1 5 3 5x 2 )= 4 7 3x )+ 1 and check the solution 3 5x 2 3x x 1 7 =- 5 21 Solve 1 3 5 3x 2 5x 3 7x Solve 5x 3 2x 7 5 3x 1 7 2 5 3 5x 2 )= 4 7 3x )+ 1 solve and check 5 x 7 = 35