-7+7n=2(-7+7n)

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Solution for -7+7n=2(-7+7n) equation: 



-7+7n=2(-7+7n)

We move all terms to the left:

-7+7n-(2(-7+7n))=0

We add all the numbers together, and all the variables

7n-(2(7n-7))-7=0



We calculate terms in parentheses: -(2(7n-7)), so:

2(7n-7)

We multiply parentheses

14n-14

Back to the equation:

-(14n-14)



We get rid of parentheses

7n-14n+14-7=0

We add all the numbers together, and all the variables

-7n+7=0

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

-7n=-7

n=-7/-7

n=1

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