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f/6=-31.2
We move all terms to the left:
f/6-(-31.2)=0
We add all the numbers together, and all the variables
f/6+31.2=0
We multiply all the terms by the denominator
f+(31.2)*6=0
We add all the numbers together, and all the variables
f+187.2=0
We move all terms containing f to the left, all other terms to the right
f=-187.2
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