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21 September, 08:13

Is the ordered pair (3, - 4) a solution for 5x + 2y = 7

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  1. 21 September, 08:33
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    Well, plug in 3 to x, and - 4 to y.

    5 (3) + 2 (-4) = 7

    15 - 8 = 7

    7=7

    Yes, (3, - 4) is a solution.
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