3-2n=7n+4

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Solution for 3-2n=7n+4 equation: 



3-2n=7n+4

We move all terms to the left:

3-2n-(7n+4)=0

We get rid of parentheses

-2n-7n-4+3=0

We add all the numbers together, and all the variables

-9n-1=0

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

-9n=1

n=1/-9

n=-1/9

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