How do you combine #9- 3n + 7n - 7#?

1 Answer
Gazza
Sep 12, 2017

#4n + 2#

Explanation:

Let me answer you question :) How do you combine ?

Well, the word combine from "combination" which means to put things together. In math, we combine the like terms so that we don't lost control of what we are solving. When we put all the terms that are alike it is easier for us to solve it.
I hope this explanation helps!

#9 -3n + 7n - 7#
Combine like terms
#-3n + 7n + 9 - 7#
#4n + 2#

I hope I helped!

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