3n-15=7n

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Solution for 3n-15=7n equation: 



3n-15=7n

We move all terms to the left:

3n-15-(7n)=0

We add all the numbers together, and all the variables

-4n-15=0

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

-4n=15

n=15/-4

n=-3+3/4

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