7n-3=9=4n

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Solution for 7n-3=9=4n equation: 



7n-3=9=4n

We move all terms to the left:

7n-3-(9)=0

We add all the numbers together, and all the variables

7n-12=0

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

7n=12

n=12/7

n=1+5/7

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