-2(3n+9)=30

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Solution for -2(3n+9)=30 equation: 



-2(3n+9)=30

We move all terms to the left:

-2(3n+9)-(30)=0

We multiply parentheses

-6n-18-30=0

We add all the numbers together, and all the variables

-6n-48=0

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

-6n=48

n=48/-6

n=-8

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