Solve a system of equation by substitution

The video tutorial explains how to solve a system of linear equations using the substitution method. The teacher guides students through selecting a variable with a coefficient of one, solving for it, and substituting its value into the other equation. The process is demonstrated step-by-step, emphasizing the importance of simplifying equations and verifying solutions. The tutorial concludes with the final solution for both variables, ensuring students understand the method and can apply it to similar problems.

Why does the teacher mention the importance of parentheses when substituting values?

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What method does the teacher plan to show for solving equations in a different way?

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What is the final solution for the values of A and B?

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