3+2n=3n-7

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



3+2n=3n-7

We move all terms to the left:

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

We get rid of parentheses

2n-3n+7+3=0

We add all the numbers together, and all the variables

-1n+10=0

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

-n=-10

n=-10/-1

n=+10

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