2(9+3n)=12n

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Solution for 2(9+3n)=12n equation: 



2(9+3n)=12n

We move all terms to the left:

2(9+3n)-(12n)=0

We add all the numbers together, and all the variables

2(3n+9)-12n=0

We add all the numbers together, and all the variables

-12n+2(3n+9)=0

We multiply parentheses

-12n+6n+18=0

We add all the numbers together, and all the variables

-6n+18=0

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

-6n=-18

n=-18/-6

n=+3

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