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27 November, 22:19

X + 8y = 11 and - x - 10 y=-19 elimination

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  1. 28 November, 00:20
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    (x, y) = (-21,4).

    x+8y=11,

    -1-10y=-19 now equals (x+8y=11) + (-1-10y) = 11+-19 simplified equals - 2y=-8.
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