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685f-85=0
We simplify the equation to the form, which is simple to understand
685f-85=0
We move all terms containing f to the left and all other terms to the right.
+685f=0+85
We simplify left and right side of the equation.
+685f=+85
We divide both sides of the equation by 685 to get f.
f=0.124087591241
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