3n-15=7n-15-4n

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Solution for 3n-15=7n-15-4n equation: 



3n-15=7n-15-4n

We move all terms to the left:

3n-15-(7n-15-4n)=0

We add all the numbers together, and all the variables

3n-(3n-15)-15=0

We get rid of parentheses

3n-3n+15-15=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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