How to solve a system of equations with three variables

The video tutorial explains how to solve systems of equations with three variables using the elimination method. It begins by introducing the concept and then guides through selecting a variable to eliminate, specifically focusing on the y variable. The process involves forming new equations, labeled A and B, and using them to solve for the remaining variables, x and z. The tutorial concludes with solving for y and summarizing the steps involved in the process.

After eliminating the y variable, what are the new equations labeled as?

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What is the final value of x after solving the equations?

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How do you find the values of the other variables after determining x?

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