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-1.9(f-18.1)=13.87
We move all terms to the left:
-1.9(f-18.1)-(13.87)=0
We add all the numbers together, and all the variables
-1.9(f-18.1)-13.87=0
We multiply parentheses
-1.9f+34.39-13.87=0
We add all the numbers together, and all the variables
-1.9f+20.52=0
We move all terms containing f to the left, all other terms to the right
-1.9f=-20.52
f=-20.52/-1.9
f=10+1/1.25
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