6=-2(n+9)

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Solution for 6=-2(n+9) equation: 



6=-2(n+9)

We move all terms to the left:

6-(-2(n+9))=0



We calculate terms in parentheses: -(-2(n+9)), so:

-2(n+9)

We multiply parentheses

-2n-18

Back to the equation:

-(-2n-18)



We get rid of parentheses

2n+18+6=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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