2n-21=23-2n

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Solution for 2n-21=23-2n equation: 



2n-21=23-2n

We move all terms to the left:

2n-21-(23-2n)=0

We add all the numbers together, and all the variables

2n-(-2n+23)-21=0

We get rid of parentheses

2n+2n-23-21=0

We add all the numbers together, and all the variables

4n-44=0

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

4n=44

n=44/4

n=11

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