Master Solving a system of equations by substitution

The video tutorial explains how to solve systems of equations using the substitution method. It covers the basics of substitution, including when to use it, and provides three detailed examples. The tutorial emphasizes the importance of having a variable with a coefficient of 1 or -1 for easier calculations. Each example is solved step-by-step, demonstrating the substitution process and how to find the solution for both variables.

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