-7(3+6n)=18-3n

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Solution for -7(3+6n)=18-3n equation: 



-7(3+6n)=18-3n

We move all terms to the left:

-7(3+6n)-(18-3n)=0

We add all the numbers together, and all the variables

-7(6n+3)-(-3n+18)=0

We multiply parentheses

-42n-(-3n+18)-21=0

We get rid of parentheses

-42n+3n-18-21=0

We add all the numbers together, and all the variables

-39n-39=0

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

-39n=39

n=39/-39

n=-1

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