7+7n=84

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Solution for 7+7n=84 equation: 



7+7n=84

We move all terms to the left:

7+7n-(84)=0

We add all the numbers together, and all the variables

7n-77=0

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

7n=77

n=77/7

n=11

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