Let's solve the equation step by step:
The equation is:
\[ 2f5 - 85 + 2f = 8 \]
First, let's clarify what \(f5\) means. If we interpret \(f5\) as \(f \cdot 5\), then the equation can be rewritten as:
\[ 2(5f) - 85 + 2f = 8 \]
This simplifies to:
\[ 10f - 85 + 2f = 8 \] \[ 12f - 85 = 8 \]
Next, add 85 to both sides of the equation:
\[ 12f - 85 + 85 = 8 + 85 \] \[ 12f = 93 \]
Now, divide both sides by 12:
\[ f = \frac{93}{12} \]
To simplify \(\frac{93}{12}\):
\[ f = \frac{31}{4} \]
This can also be expressed as:
\[ f = 7.75 \]
However, it seems there was a misunderstanding with the options given. Let's verify if any of the options match this answer:
- 83
- \( \frac{8}{3} \) (approximately 2.67)
- 4
- 12
- 166
None of these match \( \frac{31}{4} \) or 7.75.
Please double-check the equation provided and the meaning of \(f5\). If it stands for something else, let me know, and we can solve it together accordingly.