Mathematical Puzzles: What is () + () + () = 30 using 1,3,5,7,9,11,13,15?
What are the steps to solve this equation: [math]\frac{x}{x-5} + \frac{3}{2x-10} - \frac{1-x}{6x-30} + \frac{7}{15-3x} =1[/math]?