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13 April, 12:36

Find the missing coordinate if the ordered pair is to be a solution to the equation 3x+y=9: (?,-9)

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  1. 13 April, 13:06
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    3x + (-9) = 9

    3x - 9 = 9

    3x = 9 + 9

    3x = 18

    x = 18/3

    x = 6 ← missing coordinate

    Answer: (6, - 9)
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