N2-2n=15

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Solution for N2-2n=15 equation: 



2-2N=15

We move all terms to the left:

2-2N-(15)=0

We add all the numbers together, and all the variables

-2N-13=0

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

-2N=13

N=13/-2

N=-6+1/2

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