Solving a system of equations by using the substitution method

The video tutorial explains how to solve a system of equations using graphing and substitution methods. It highlights the advantages of substitution, especially when a variable has a coefficient of 1. The tutorial walks through solving for variables, evaluating expressions, and finding coordinates by combining like terms. The teacher provides tips and examples to clarify the process.

Why is it easier to use substitution when a variable is isolated?

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How do you evaluate an expression when a variable is equal to another expression?

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What is the final coordinate point obtained after solving the system of equations?

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