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12 March, 21:36

Solve by Elimination x-8y=18 - 16x + 16y=-8

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  1. 13 March, 01:10
    0
    The value of y is - 2.5The value of x is - 2.

    x - 8y = 18

    -16x + 16y = - 8

    We can multiply each term in the first equation by 2 to better assist this elimination.

    2x - 16y = 36

    Now, we can use elimination.

    Add equations together.

    -14x = 28

    Divide both sides by - 14

    x = - 2

    Now that we have a value for x, we can solve for y.

    -2 - 8y = 18

    Add 2 to both sides.

    -8y = 20

    Divide both sides by - 8

    y = - 2.5
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