4f-7f=-31

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Solution for 4f-7f=-31 equation: 



4f-7f=-31

We move all terms to the left:

4f-7f-(-31)=0

We add all the numbers together, and all the variables

-3f+31=0

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

-3f=-31

f=-31/-3

f=10+1/3

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