-3(4n+3)=-9-12n

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Solution for -3(4n+3)=-9-12n equation: 



-3(4n+3)=-9-12n

We move all terms to the left:

-3(4n+3)-(-9-12n)=0

We add all the numbers together, and all the variables

-3(4n+3)-(-12n-9)=0

We multiply parentheses

-12n-(-12n-9)-9=0

We get rid of parentheses

-12n+12n+9-9=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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