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24 June, 11:49

Simplify and then evaluate.

-12x+14x-6x, if x=129.

The simplified expression is _, the value is _.

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  1. 24 June, 14:24
    0
    The simplified expression is - 4x and the value is - 516

    Step-by-step explanation:

    -12x+14x-6x

    Combine like terms

    2x-6x

    -4x

    Let x = 129

    -4*129

    -516
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