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6 December, 01:56

Solve the following system of equations 2x+7y=-57 and - 6x-8y=80

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  1. 6 December, 02:04
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    I would use the process of elimination. Divide 13 from both sides

    2x+7y=-57 y=-7 then plug in y to an equation

    -6x-8y=80 2x+7 (-7) = - 57 multiple

    multiple the first equation by 3 2x-49=-57 add 49 to both sides

    6x+21y=-171 2x=-8 divide two from both sides

    -6x-8y=80 x=-4

    combine like terms So your things would be x=-4 and y=-7

    13y=-91 And itd make the solution (-4,-7).
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