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f=8f+22.8
We move all terms to the left:
f-(8f+22.8)=0
We get rid of parentheses
f-8f-22.8=0
We add all the numbers together, and all the variables
-7f-22.8=0
We move all terms containing f to the left, all other terms to the right
-7f=22.8
f=22.8/-7
f=-3+1/3.8888888888889
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