3n+(n-2)=9

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Solution for 3n+(n-2)=9 equation: 



3n+(n-2)=9

We move all terms to the left:

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

We get rid of parentheses

3n+n-2-9=0

We add all the numbers together, and all the variables

4n-11=0

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

4n=11

n=11/4

n=2+3/4

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