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11-7.2f=-3.82
We move all terms to the left:
11-7.2f-(-3.82)=0
We add all the numbers together, and all the variables
-7.2f+14.82=0
We move all terms containing f to the left, all other terms to the right
-7.2f=-14.82
f=-14.82/-7.2
f=2+0.42/7.2
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