-42=7(1+7n)-5(3n+3)

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Solution for -42=7(1+7n)-5(3n+3) equation: 



-42=7(1+7n)-5(3n+3)

We move all terms to the left:

-42-(7(1+7n)-5(3n+3))=0

We add all the numbers together, and all the variables

-(7(7n+1)-5(3n+3))-42=0



We calculate terms in parentheses: -(7(7n+1)-5(3n+3)), so:

7(7n+1)-5(3n+3)

We multiply parentheses

49n-15n+7-15

We add all the numbers together, and all the variables

34n-8

Back to the equation:

-(34n-8)



We get rid of parentheses

-34n+8-42=0

We add all the numbers together, and all the variables

-34n-34=0

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

-34n=34

n=34/-34

n=-1

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