3(2n-7)-12=9

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Solution for 3(2n-7)-12=9 equation: 



3(2n-7)-12=9

We move all terms to the left:

3(2n-7)-12-(9)=0

We add all the numbers together, and all the variables

3(2n-7)-21=0

We multiply parentheses

6n-21-21=0

We add all the numbers together, and all the variables

6n-42=0

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

6n=42

n=42/6

n=7

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