-30=-(2n+6)

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Solution for -30=-(2n+6) equation: 



-30=-(2n+6)

We move all terms to the left:

-30-(-(2n+6))=0



We calculate terms in parentheses: -(-(2n+6)), so:

-(2n+6)

We get rid of parentheses

-2n-6

Back to the equation:

-(-2n-6)



We get rid of parentheses

2n+6-30=0

We add all the numbers together, and all the variables

2n-24=0

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

2n=24

n=24/2

n=12

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