Learn how to solve a system of equations by substitution

The video tutorial covers solving systems of equations using the substitution method. It begins with an introduction to solving systems by graphing and substitution, followed by a detailed explanation of the substitution method. The tutorial guides students on choosing variables for substitution, especially when coefficients are one or negative one. It then provides a step-by-step process for solving equations using substitution, culminating in finding the solution as coordinate points where the lines intersect.

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