3n-9=2n+1

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Solution for 3n-9=2n+1 equation: 



3n-9=2n+1

We move all terms to the left:

3n-9-(2n+1)=0

We get rid of parentheses

3n-2n-1-9=0

We add all the numbers together, and all the variables

n-10=0

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

n=10

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