8n-9=-5(-n-3)-n

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Solution for 8n-9=-5(-n-3)-n equation: 



8n-9=-5(-n-3)-n

We move all terms to the left:

8n-9-(-5(-n-3)-n)=0

We add all the numbers together, and all the variables

8n-(-5(-1n-3)-n)-9=0



We calculate terms in parentheses: -(-5(-1n-3)-n), so:

-5(-1n-3)-n

We add all the numbers together, and all the variables

-1n-5(-1n-3)

We multiply parentheses

-1n+5n+15

We add all the numbers together, and all the variables

4n+15

Back to the equation:

-(4n+15)



We get rid of parentheses

8n-4n-15-9=0

We add all the numbers together, and all the variables

4n-24=0

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

4n=24

n=24/4

n=6

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