n-2n=30

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Solution for n-2n=30 equation: 



n-2n=30

We move all terms to the left:

n-2n-(30)=0

We add all the numbers together, and all the variables

-1n-30=0

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

-n=30

n=30/-1

n=-30

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