4n+3n=n+9

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Solution for 4n+3n=n+9 equation: 



4n+3n=n+9

We move all terms to the left:

4n+3n-(n+9)=0

We add all the numbers together, and all the variables

7n-(n+9)=0

We get rid of parentheses

7n-n-9=0

We add all the numbers together, and all the variables

6n-9=0

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

6n=9

n=9/6

n=1+1/2

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