-9(-7-7n)=9(6n-7)

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Solution for -9(-7-7n)=9(6n-7) equation: 



-9(-7-7n)=9(6n-7)

We move all terms to the left:

-9(-7-7n)-(9(6n-7))=0

We add all the numbers together, and all the variables

-9(-7n-7)-(9(6n-7))=0

We multiply parentheses

63n-(9(6n-7))+63=0



We calculate terms in parentheses: -(9(6n-7)), so:

9(6n-7)

We multiply parentheses

54n-63

Back to the equation:

-(54n-63)



We get rid of parentheses

63n-54n+63+63=0

We add all the numbers together, and all the variables

9n+126=0

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

9n=-126

n=-126/9

n=-14

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