To solve the equation
\[ \frac{2f}{5} - \frac{8}{5} + 2f = 8, \]
we start by simplifying the left-hand side. First, we convert \(2f\) into a fraction with a denominator of \(5\):
\[ 2f = \frac{10f}{5}. \]
Now substituting this back into the equation gives us
\[ \frac{2f}{5} - \frac{8}{5} + \frac{10f}{5} = 8. \]
Next, we can combine the terms on the left side which have a common denominator of \(5\):
\[ \frac{2f + 10f - 8}{5} = 8, \]
which simplifies to
\[ \frac{12f - 8}{5} = 8. \]
To eliminate the fraction, we multiply both sides of the equation by \(5\):
\[ 12f - 8 = 40. \]
Next, we want to isolate \(12f\) on one side. To do this, we add \(8\) to both sides:
\[ 12f = 48. \]
Finally, we divide both sides by \(12\) to solve for \(f\):
\[ f = \frac{48}{12} = 4. \]
The solution to the equation is
\[ \boxed{4}. \]
(Note: The given options were not used in finding the solution, as they were inconsistent with the derived answer \(f = 4\).)
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