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27 July, 14:14

What are the solutions of the following system x2+y2=25, 2x+y=-5

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  1. 27 July, 16:07
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    Y=5-2x

    x^2 + (5-2x) ^2 = 25

    x^2 + 25-20x+4x^2 = 25

    x^2 + 4x^2-20x+25=25

    5x^2 - 20x=0

    x=0 and y=5
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