Using substitution to solve a system

The video tutorial explains how to solve systems of equations using the substitution method. It begins with an introduction to the concept, followed by a detailed explanation of how to substitute one variable's value into another equation. The instructor demonstrates the process step-by-step, including combining like terms and solving for the variables. The tutorial concludes with a discussion on finding the solution and addressing any questions.

What new insight or understanding did you gain from this video?