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30 October, 15:14

70 - q - q - 2q = 80?

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  1. 30 October, 15:36
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    70-q-q-2q = 80

    combine like terms first

    so you get 70-4q = 80

    subtract 70 on both sides and you get - 4q = 10

    divide - 4 on both sides and you get q = 10/-4 or - 2.5
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