Learn to solve a system of three equations

The video tutorial explains how to solve a system of three variables by eliminating one variable to reduce it to a system of two variables. The instructor demonstrates the elimination method and substitution method to find the values of x, y, and z. The process involves labeling equations, choosing a variable to eliminate, and solving the resulting equations to find the final solution.

What is the first step to take when solving a system of three variables?

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How do you determine which variable to eliminate in a system of equations?

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What are the equations used in the elimination process for this example?

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What is the result of adding the modified equations after eliminating y?

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What method can be used to solve the equations after reducing them to two variables?

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How do you find the value of z in this system of equations?

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What is the final solution for the variables x, y, and z?

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