3(n+3)=42

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Solution for 3(n+3)=42 equation: 



3(n+3)=42

We move all terms to the left:

3(n+3)-(42)=0

We multiply parentheses

3n+9-42=0

We add all the numbers together, and all the variables

3n-33=0

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

3n=33

n=33/3

n=11

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