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4 September, 15:41

Find the domain of the rational expression 8-x/7x+21

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  1. 4 September, 17:21
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    all real numbers except x=-3

    Step-by-step explanation:

    Perhaps you want the domain of ...

    (8 - x) / (7x + 21)

    The domain is all real numbers except the one that makes the denominator zero: x = - 3.
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