Algebra, can some show me how to set this up

If f(x) = x − 7, find the following.

f(13)
f(-6)
f(p)

Thank you, you guys do not know what it means to me that I have a site that has a wonderful group of people to help us trying to understand.

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  1. In equation :

    f(x) = x − 7

    replace x with given numbers.

    f ( 13 ) = 13 - 7 = 6

    f ( - 6 ) = - 6 - 7 = - 13

    f ( p ) = p - 7

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    posted by Bosnian

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