3n=15+(5+1)

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Solution for 3n=15+(5+1) equation: 



3n=15+(5+1)

We move all terms to the left:

3n-(15+(5+1))=0

We add all the numbers together, and all the variables

3n-(15+6)=0

We add all the numbers together, and all the variables

3n-21=0

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

3n=21

n=21/3

n=7

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