3f-8f=31

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Solution for 3f-8f=31 equation: 



3f-8f=31

We move all terms to the left:

3f-8f-(31)=0

We add all the numbers together, and all the variables

-5f-31=0

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

-5f=31

f=31/-5

f=-6+1/5

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