3n-9=7-3n

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Solution for 3n-9=7-3n equation: 



3n-9=7-3n

We move all terms to the left:

3n-9-(7-3n)=0

We add all the numbers together, and all the variables

3n-(-3n+7)-9=0

We get rid of parentheses

3n+3n-7-9=0

We add all the numbers together, and all the variables

6n-16=0

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

6n=16

n=16/6

n=2+2/3

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