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6 February, 19:46

Solve the following system of equations express your answers as an ordered pair in the format (a, b) with no spaces between the number of symbols 2x+7y=-1 4x-3y=-19

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  1. 6 February, 22:07
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    Double the first equation: 4x+14y=-2 and subtract the second: 17y=17, so y=1. 2x=-7y-1=-7-1=-8, so x=-8/2=-4.

    The answer is x=-4 and y=1.
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