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28 December, 08:45

12 Х+3y=74 and 4x+12y=724 solve for the solution to the system

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  1. 28 December, 11:40
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    (-9.7,63.6)

    Step-by-step explanation:

    12x + 3y = 74

    4x + 12y = 724

    x + 3y = 181

    3y = - 12x + 74

    3y = - x + 181

    -12x + 74 = - x + 181

    -11x = 107

    x = - 9.7

    -9.7 + 3y = 181

    3y = 190.7

    y = 63.6
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