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8 December, 01:56

Three times the sum of nine and a number is at most - 9

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  1. 8 December, 02:18
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    Step-by-step explanation:

    I assume the question is "what is x"

    Let x be the number.

    At most means less than or equal to.

    3 (9+x) <-9

    Distribute: 3*9+3*x<-9

    27+3x< - 9

    Subtract 27

    3x< - 36

    Divide by 3

    x< - 12
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