21+n=2n-37

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Solution for 21+n=2n-37 equation: 



21+n=2n-37

We move all terms to the left:

21+n-(2n-37)=0

We get rid of parentheses

n-2n+37+21=0

We add all the numbers together, and all the variables

-1n+58=0

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

-n=-58

n=-58/-1

n=+58

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