n=18-3n

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Solution for n=18-3n equation: 



n=18-3n

We move all terms to the left:

n-(18-3n)=0

We add all the numbers together, and all the variables

n-(-3n+18)=0

We get rid of parentheses

n+3n-18=0

We add all the numbers together, and all the variables

4n-18=0

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

4n=18

n=18/4

n=4+1/2

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