3(3n+7)=84

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Solution for 3(3n+7)=84 equation: 



3(3n+7)=84

We move all terms to the left:

3(3n+7)-(84)=0

We multiply parentheses

9n+21-84=0

We add all the numbers together, and all the variables

9n-63=0

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

9n=63

n=63/9

n=7

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