7n+12-4=64

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Solution for 7n+12-4=64 equation: 



7n+12-4=64

We move all terms to the left:

7n+12-4-(64)=0

We add all the numbers together, and all the variables

7n-56=0

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

7n=56

n=56/7

n=8

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