-7(n+9)=3(15-n)

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Solution for -7(n+9)=3(15-n) equation: 



-7(n+9)=3(15-n)

We move all terms to the left:

-7(n+9)-(3(15-n))=0

We add all the numbers together, and all the variables

-7(n+9)-(3(-1n+15))=0

We multiply parentheses

-7n-(3(-1n+15))-63=0



We calculate terms in parentheses: -(3(-1n+15)), so:

3(-1n+15)

We multiply parentheses

-3n+45

Back to the equation:

-(-3n+45)



We get rid of parentheses

-7n+3n-45-63=0

We add all the numbers together, and all the variables

-4n-108=0

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

-4n=108

n=108/-4

n=-27

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