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20 December, 20:32

How can I use elimination and substitution in complicated math equations?

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  1. 20 December, 21:22
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    Example 1: Solve the system of equations by elimination

    Elimination Method Example

    Solution:

    In this example we will "cancel out" the y term. To do so, we can add the equations together.

    Elimination Method Solution

    Now we can find: x = 2

    In order to solve for y, take the value for x and substitute it back into either one of the original equations.

    Elimination Method Solution

    The solution is (x, y) = (2, 1).
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