21-6n=-3n-7(-8n-3)

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Solution for 21-6n=-3n-7(-8n-3) equation: 



21-6n=-3n-7(-8n-3)

We move all terms to the left:

21-6n-(-3n-7(-8n-3))=0



We calculate terms in parentheses: -(-3n-7(-8n-3)), so:

-3n-7(-8n-3)

We multiply parentheses

-3n+56n+21

We add all the numbers together, and all the variables

53n+21

Back to the equation:

-(53n+21)



We get rid of parentheses

-6n-53n-21+21=0

We add all the numbers together, and all the variables

-59n=0

n=0/-59

n=0

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