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5 October, 16:25

Anna found the difference between thirteen and the product of four and a number. Which expression represents this phrase, and what is its value if n = 3?

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  1. 5 October, 17:32
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    The first thing we must do for this case is to define a variable.

    We have then:

    n: unknown number.

    We write the algebraic expression:

    13 - 4n

    For n = 3 we have:

    13 - 4 (3) = 13 - 12 = 1

    Answer:

    An expression that represents this phrase is:

    13 - 4n

    its value if n = 3 is:

    1
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