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-12=0

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

6n=12

n=12/6

n=2

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