31=8n-(3n+4)

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Solution for 31=8n-(3n+4) equation: 



31=8n-(3n+4)

We move all terms to the left:

31-(8n-(3n+4))=0



We calculate terms in parentheses: -(8n-(3n+4)), so:

8n-(3n+4)

We get rid of parentheses

8n-3n-4

We add all the numbers together, and all the variables

5n-4

Back to the equation:

-(5n-4)



We get rid of parentheses

-5n+4+31=0

We add all the numbers together, and all the variables

-5n+35=0

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

-5n=-35

n=-35/-5

n=+7

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