3n+9=51

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Solution for 3n+9=51 equation: 



3n+9=51

We move all terms to the left:

3n+9-(51)=0

We add all the numbers together, and all the variables

3n-42=0

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

3n=42

n=42/3

n=14

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