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To solve the equation \( \frac{2f}{5} - \frac{8}{5} + 2f = 8 \), we can follow these steps:
1. **Combine like terms**:
Start by expressing \( 2f \) with a common denominator of 5. We can do this by rewriting \( 2f \) as \( \frac{10f}{5} \):
\[
\frac{2f}{5} - \frac{8}{5} + \frac{10f}{5} = 8
\]
Now combine the terms:
\[
\frac{2f + 10f - 8}{5} = 8
\]
This simplifies to:
\[
\frac{12f - 8}{5} = 8
\]
2. **Eliminate the fraction**:
Multiply both sides by 5 to eliminate the denominator:
\[
12f - 8 = 40
\]
3. **Isolate the term with \( f \)**:
Add 8 to both sides:
\[
12f = 48
\]
4. **Solve for \( f \)**:
Divide both sides by 12:
\[
f = 4
\]
So the solution to the equation is:
\[
\boxed{4}
\]