7n+7=7(1+3n)

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Solution for 7n+7=7(1+3n) equation: 



7n+7=7(1+3n)

We move all terms to the left:

7n+7-(7(1+3n))=0

We add all the numbers together, and all the variables

7n-(7(3n+1))+7=0



We calculate terms in parentheses: -(7(3n+1)), so:

7(3n+1)

We multiply parentheses

21n+7

Back to the equation:

-(21n+7)



We get rid of parentheses

7n-21n-7+7=0

We add all the numbers together, and all the variables

-14n=0

n=0/-14

n=0

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