3(n+-4)=12n

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Solution for 3(n+-4)=12n equation: 



3(n+-4)=12n

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(n-4)-12n=0

We add all the numbers together, and all the variables

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

We multiply parentheses

-12n+3n-12=0

We add all the numbers together, and all the variables

-9n-12=0

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

-9n=12

n=12/-9

n=-1+1/3

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