7(n-3)=+3n

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Solution for 7(n-3)=+3n equation: 



7(n-3)=+3n

We move all terms to the left:

7(n-3)-(+3n)=0

We multiply parentheses

7n-(+3n)-21=0

We get rid of parentheses

7n-3n-21=0

We add all the numbers together, and all the variables

4n-21=0

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

4n=21

n=21/4

n=5+1/4

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