3n-4=12-n

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Solution for 3n-4=12-n equation: 



3n-4=12-n

We move all terms to the left:

3n-4-(12-n)=0

We add all the numbers together, and all the variables

3n-(-1n+12)-4=0

We get rid of parentheses

3n+1n-12-4=0

We add all the numbers together, and all the variables

4n-16=0

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

4n=16

n=16/4

n=4

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