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22 September, 22:25

What is the value of f (x) = 3x - 12 for x = 9

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  1. 22 September, 22:38
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    If f (x) = 3x - 12 and x = 9

    then substitute 9 in place of x

    f (9) = 3 (9) - 12

    f (9) = 27 - 12

    f (9) = 15
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