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7 June, 00:20

Which is a correct way of evaluating the expression 15x + 30x for x = 2?.

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  1. 7 June, 02:46
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    15x + 30x=90 when x=2

    Step-by-step explanation:

    15x + 30x plug in 2 for x

    15 (2) + 30 (2) = 30 + 60=90

    or

    15x + 30x=45x plug in 2 for x

    45 (2) = 90
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