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-7.61-18.6f=9.87-16.3f
We move all terms to the left:
-7.61-18.6f-(9.87-16.3f)=0
We add all the numbers together, and all the variables
-18.6f-(-16.3f+9.87)-7.61=0
We get rid of parentheses
-18.6f+16.3f-9.87-7.61=0
We add all the numbers together, and all the variables
-2.3f-17.48=0
We move all terms containing f to the left, all other terms to the right
-2.3f=17.48
f=17.48/-2.3
f=-7+1/1.6666666666667
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