N2-10n=-21

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Solution for N2-10n=-21 equation: 



2-10N=-21

We move all terms to the left:

2-10N-(-21)=0

We add all the numbers together, and all the variables

-10N+23=0

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

-10N=-23

N=-23/-10

N=2+3/10

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