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

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



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

We move all terms to the left:

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

We get rid of parentheses

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



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

3-(7n-7)

determiningTheFunctionDomain
-(7n-7)+3

We get rid of parentheses

-7n+7+3

We add all the numbers together, and all the variables

-7n+10

Back to the equation:

-(-7n+10)



We add all the numbers together, and all the variables

-4n-(-7n+10)-9=0

We get rid of parentheses

-4n+7n-10-9=0

We add all the numbers together, and all the variables

3n-19=0

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

3n=19

n=19/3

n=6+1/3

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