This topic is in the 'Systems of Equations and Inequalities' section. Once you know how to work with individual equations and inequalities, it's time to turn up the heat and combine multiple equations or multiple inequalities together. Visually this is like now dealing with multiple lines on a graph, instead of just one. The good news is that the rules you know will work just as well, and the challenge is that there are some new techniques and words to learn. We've got a lot of tutorials to help you get through it though, so check them out!