-3-n=7(n+3)

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Solution for -3-n=7(n+3) equation: 



-3-n=7(n+3)

We move all terms to the left:

-3-n-(7(n+3))=0

We add all the numbers together, and all the variables

-1n-(7(n+3))-3=0



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

7(n+3)

We multiply parentheses

7n+21

Back to the equation:

-(7n+21)



We get rid of parentheses

-1n-7n-21-3=0

We add all the numbers together, and all the variables

-8n-24=0

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

-8n=24

n=24/-8

n=-3

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