3(2+4n)-3n=42

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Solution for 3(2+4n)-3n=42 equation: 



3(2+4n)-3n=42

We move all terms to the left:

3(2+4n)-3n-(42)=0

We add all the numbers together, and all the variables

3(4n+2)-3n-42=0

We add all the numbers together, and all the variables

-3n+3(4n+2)-42=0

We multiply parentheses

-3n+12n+6-42=0

We add all the numbers together, and all the variables

9n-36=0

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

9n=36

n=36/9

n=4

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