-n=18-7n

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Solution for -n=18-7n equation: 



-n=18-7n

We move all terms to the left:

-n-(18-7n)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-1n-(-7n+18)=0

We get rid of parentheses

-1n+7n-18=0

We add all the numbers together, and all the variables

6n-18=0

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

6n=18

n=18/6

n=3

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