n+3n=12-8n

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Solution for n+3n=12-8n equation: 



n+3n=12-8n

We move all terms to the left:

n+3n-(12-8n)=0

We add all the numbers together, and all the variables

n+3n-(-8n+12)=0

We add all the numbers together, and all the variables

4n-(-8n+12)=0

We get rid of parentheses

4n+8n-12=0

We add all the numbers together, and all the variables

12n-12=0

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

12n=12

n=12/12

n=1

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