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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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



We calculate terms in parentheses: -(3(n+7)), so:

3(n+7)

We multiply parentheses

3n+21

Back to the equation:

-(3n+21)



We get rid of parentheses

-21n-3n-21+21=0

We add all the numbers together, and all the variables

-24n=0

n=0/-24

n=0

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