C(11,r)=330

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Solution for C(11,r)=330 equation: 



(11.C)=330

We move all terms to the left:

(11.C)-(330)=0

We add all the numbers together, and all the variables

(+11.C)-330=0

We get rid of parentheses

11.C-330=0

We move all terms containing C to the left, all other terms to the right

11.C=330

C=330/11.

C=30

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