9n-4=12n+8

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Solution for 9n-4=12n+8 equation: 



9n-4=12n+8

We move all terms to the left:

9n-4-(12n+8)=0

We get rid of parentheses

9n-12n-8-4=0

We add all the numbers together, and all the variables

-3n-12=0

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

-3n=12

n=12/-3

n=-4

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