What is a system of equations

The video tutorial explains the concept of solving equations using inverse operations, introduces systems of equations, and discusses how to solve them when dealing with multiple variables. It highlights the need for having as many equations as there are variables to find solutions that satisfy all equations. The tutorial also touches on literal equations and the importance of systems of equations in solving for multiple variables simultaneously.

What is the significance of having a third equation when dealing with three variables?

How does the presence of multiple variables affect the number of equations needed?