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6.2f+0.22=12
We move all terms to the left:
6.2f+0.22-(12)=0
We add all the numbers together, and all the variables
6.2f-11.78=0
We move all terms containing f to the left, all other terms to the right
6.2f=11.78
f=11.78/6.2
f=1+3.5316455696203/3.9240506329114
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