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30 December, 18:23

What solution is y=x+6 and 3x-3y=18

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  1. 30 December, 18:46
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    Step-by-step explanation:

    Substituting y into equation 2 ...

    3x - 3 (x + 6) = 18

    3x - 3x - 18 = 18

    3x - 3x = 18 - 18

    0 = 0
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