3f+12=72

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Solution for 3f+12=72 equation: 



3f+12=72

We move all terms to the left:

3f+12-(72)=0

We add all the numbers together, and all the variables

3f-60=0

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

3f=60

f=60/3

f=20

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