What is the fine-grained topic of the following text: Example: The first equation can be solved using n = 8 and m = 1 and thereafter, any multiple of n such as n = 16 and m = -10 (in the sense that you will pay: 16 x 11 confusions=176 - 96 = 80 / 8 confusions =10 that you will get back, and so on....). Only return the topic.
Solving Mathematical Equations