(3n+1)-(3n-1)=9

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Solution for (3n+1)-(3n-1)=9 equation: 



(3n+1)-(3n-1)=9

We move all terms to the left:

(3n+1)-(3n-1)-(9)=0

We get rid of parentheses

3n-3n+1+1-9=0

We add all the numbers together, and all the variables

-7!=0

There is no solution for this equation

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