12n=-42+9n

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Solution for 12n=-42+9n equation: 



12n=-42+9n

We move all terms to the left:

12n-(-42+9n)=0

We add all the numbers together, and all the variables

12n-(9n-42)=0

We get rid of parentheses

12n-9n+42=0

We add all the numbers together, and all the variables

3n+42=0

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

3n=-42

n=-42/3

n=-14

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