7(9n-1)-12=-7(1-9n)

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Solution for 7(9n-1)-12=-7(1-9n) equation: 



7(9n-1)-12=-7(1-9n)

We move all terms to the left:

7(9n-1)-12-(-7(1-9n))=0

We add all the numbers together, and all the variables

7(9n-1)-(-7(-9n+1))-12=0

We multiply parentheses

63n-(-7(-9n+1))-7-12=0



We calculate terms in parentheses: -(-7(-9n+1)), so:

-7(-9n+1)

We multiply parentheses

63n-7

Back to the equation:

-(63n-7)



We add all the numbers together, and all the variables

63n-(63n-7)-19=0

We get rid of parentheses

63n-63n+7-19=0

We add all the numbers together, and all the variables

-12!=0

There is no solution for this equation

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