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Mathematics 12 Online
OpenStudy (anonymous):

11n - 19n =

OpenStudy (anonymous):

-8n

OpenStudy (anonymous):

I don't get it, @amcdowns , can you explain how you got that?

OpenStudy (lgbasallote):

i think saying 0 is just as equally random

OpenStudy (anonymous):

Because it is n-n, n is cancelled and you have left simply 11-19, and therefore −8... I think.....

OpenStudy (anonymous):

Hmm, I don't know why the n's would cancel . . .

OpenStudy (anonymous):

Well n is just a variable, you can just plug in 1...

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