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17 March, 04:24

Which ordered pair is a solution of the equation? 7x-2y=-57x-2y=-5

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  1. 17 March, 04:39
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    Since 7x-2y=-57x-2y=-5

    eqn 1) 7x-2y=-5

    eqn 2) - 57x-2y=-5

    solve equation 1 for x and plugged into equation 2 ... x=-5/7+2y/7

    -57 (-5/7+2y/7) - 2y=-5

    40.714 - 16.286y - 2y = - 5

    40.714-14.286y = - 5

    40.714-14.286y = - 5

    - 40.714 and : - 14.286 from both sides

    y=-3.199

    And plug y into equation

    x=-5/7+2 (3.1999) / 7 = 0.19997
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