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3.1f=-19.22
We move all terms to the left:
3.1f-(-19.22)=0
We add all the numbers together, and all the variables
3.1f+19.22=0
We move all terms containing f to the left, all other terms to the right
3.1f=-19.22
f=-19.22/3.1
f=-6+0.62/3.1
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