4n-9=-3n

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



4n-9=-3n

We move all terms to the left:

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

We get rid of parentheses

4n+3n-9=0

We add all the numbers together, and all the variables

7n-9=0

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

7n=9

n=9/7

n=1+2/7

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