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22 August, 06:06

Solve the system using eliminationx+7y=-37 2x-5y=21

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  1. 22 August, 09:03
    0
    y = - 5

    x = - 2

    Step-by-step explanation:

    x+7y=-37

    2x-5y=21

    Multiply first equation by - 2

    -2 * (x + 7y) = - 37 ➡ - 2x - 14y = 74

    now add the equation up

    2x-5y - 2x - 14y = 21 + 74 (-2x will eliminate 2x)

    -19y = 95 divide both sides by 19

    y = - 5 we can find the value for x by using this information

    x + 7y = - 37 replace y by - 5

    x + 7 * (-5) = - 37

    x = - 2
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