12n=30-3n

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Solution for 12n=30-3n equation: 



12n=30-3n

We move all terms to the left:

12n-(30-3n)=0

We add all the numbers together, and all the variables

12n-(-3n+30)=0

We get rid of parentheses

12n+3n-30=0

We add all the numbers together, and all the variables

15n-30=0

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

15n=30

n=30/15

n=2

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