7n-18=-2n

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Solution for 7n-18=-2n equation: 



7n-18=-2n

We move all terms to the left:

7n-18-(-2n)=0

We get rid of parentheses

7n+2n-18=0

We add all the numbers together, and all the variables

9n-18=0

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

9n=18

n=18/9

n=2

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