7n=3n-12

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Solution for 7n=3n-12 equation: 



7n=3n-12

We move all terms to the left:

7n-(3n-12)=0

We get rid of parentheses

7n-3n+12=0

We add all the numbers together, and all the variables

4n+12=0

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

4n=-12

n=-12/4

n=-3

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