12-7=3n+4

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Solution for 12-7=3n+4 equation: 



12-7=3n+4

We move all terms to the left:

12-7-(3n+4)=0

We add all the numbers together, and all the variables

-(3n+4)+5=0

We get rid of parentheses

-3n-4+5=0

We add all the numbers together, and all the variables

-3n+1=0

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

-3n=-1

n=-1/-3

n=1/3

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