2n-6n=21-5n

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Solution for 2n-6n=21-5n equation: 



2n-6n=21-5n

We move all terms to the left:

2n-6n-(21-5n)=0

We add all the numbers together, and all the variables

2n-6n-(-5n+21)=0

We add all the numbers together, and all the variables

-4n-(-5n+21)=0

We get rid of parentheses

-4n+5n-21=0

We add all the numbers together, and all the variables

n-21=0

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

n=21

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