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-41=77f+21
We simplify the equation to the form, which is simple to understand
-41=77f+21
We move all terms containing f to the left and all other terms to the right.
-77f=+21+41
We simplify left and right side of the equation.
-77f=+62
We divide both sides of the equation by -077 to get f.
f=-0.805194805195
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