-20=n-30

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Solution for -20=n-30 equation: 



-20=n-30

We move all terms to the left:

-20-(n-30)=0

We get rid of parentheses

-n+30-20=0

We add all the numbers together, and all the variables

-1n+10=0

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

-n=-10

n=-10/-1

n=+10

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