N2=-18-9n

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Solution for N2=-18-9n equation: 



2=-18-9N

We move all terms to the left:

2-(-18-9N)=0

We add all the numbers together, and all the variables

-(-9N-18)+2=0

We get rid of parentheses

9N+18+2=0

We add all the numbers together, and all the variables

9N+20=0

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

9N=-20

N=-20/9

N=-2+2/9

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