12+3n=4+7n

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



12+3n=4+7n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3n-7n-4+12=0

We add all the numbers together, and all the variables

-4n+8=0

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

-4n=-8

n=-8/-4

n=+2

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