39=3(3-3n)-n

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Solution for 39=3(3-3n)-n equation: 



39=3(3-3n)-n

We move all terms to the left:

39-(3(3-3n)-n)=0

We add all the numbers together, and all the variables

-(3(-3n+3)-n)+39=0



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

3(-3n+3)-n

We add all the numbers together, and all the variables

-1n+3(-3n+3)

We multiply parentheses

-1n-9n+9

We add all the numbers together, and all the variables

-10n+9

Back to the equation:

-(-10n+9)



We get rid of parentheses

10n-9+39=0

We add all the numbers together, and all the variables

10n+30=0

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

10n=-30

n=-30/10

n=-3

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