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4.7f=-28.2
We move all terms to the left:
4.7f-(-28.2)=0
We add all the numbers together, and all the variables
4.7f+28.2=0
We move all terms containing f to the left, all other terms to the right
4.7f=-28.2
f=-28.2/4.7
f=-6+-3.5527136788005E-15/4.7
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