3n+12=7n-8

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Solution for 3n+12=7n-8 equation: 



3n+12=7n-8

We move all terms to the left:

3n+12-(7n-8)=0

We get rid of parentheses

3n-7n+8+12=0

We add all the numbers together, and all the variables

-4n+20=0

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

-4n=-20

n=-20/-4

n=+5

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