12=-3(2n-6)+4n

Solution for 12=-3(2n-6)+4n equation:

12=-3(2n-6)+4n

We move all terms to the left:

12-(-3(2n-6)+4n)=0


We calculate terms in parentheses: -(-3(2n-6)+4n), so:

-3(2n-6)+4n

We add all the numbers together, and all the variables

4n-3(2n-6)

We multiply parentheses

4n-6n+18

We add all the numbers together, and all the variables

-2n+18

Back to the equation:

-(-2n+18)


We get rid of parentheses

2n-18+12=0

We add all the numbers together, and all the variables

2n-6=0

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

2n=6

n=6/2

n=3