7n-7(n+6)=3(1+n)

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Solution for 7n-7(n+6)=3(1+n) equation: 



7n-7(n+6)=3(1+n)

We move all terms to the left:

7n-7(n+6)-(3(1+n))=0

We add all the numbers together, and all the variables

7n-7(n+6)-(3(n+1))=0

We multiply parentheses

7n-7n-(3(n+1))-42=0



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

3(n+1)

We multiply parentheses

3n+3

Back to the equation:

-(3n+3)



We add all the numbers together, and all the variables

-(3n+3)-42=0

We get rid of parentheses

-3n-3-42=0

We add all the numbers together, and all the variables

-3n-45=0

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

-3n=45

n=45/-3

n=-15

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