Basic Mathematics by Serge Lang - 2.2 Equations in three unknowns (Basic Mathematics)

How can you solve three equations with three unknowns? Simultaneous equations aren't very difficult. Let's work out an example and see how to do it. This should give you some hints on how you can do 4, 5, or more equations and so on. Again, we're not going to get theoretical. That's Linear Algebra, which we cover in later chapters. Support Real Physics by buying the book through this Amazon affiliate link: https://amzn.to/2I5yIHr Here's my Patreon account if you want to give me money: https://www.patreon.com/realphysics Other ways to support Real Physics: https://youtu.be/44nldGgJCiw Playlist: https://www.youtube.com/playlist?list=PLMcpDl1Pr-viA25VUkHNmcUkWx9usPgyb Thank you!