How do you evaluate $-5+k-n$ when $k=-3$ and $n=9$ ?

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Answer 1 · 2017-03-08T22:22:29

-17
(Just put given values to their places.)

$-5+k-n = -5 + (-3) - 9$

where $k=-3$ and $n=9$

so it becomes

$-5-3-9 = -17$

How do you evaluate -5+k-n-5+k-n when k=-3k=-3 and n=9n=9?