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^2=-11N-18
We move all terms to the left:
^2-(-11N-18)=0
We add all the numbers together, and all the variables
-(-11N-18)=0
We get rid of parentheses
11N+18=0
We move all terms containing N to the left, all other terms to the right
11N=-18
N=-18/11
N=-1+7/11
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