To determine the cost of labor per hour, let's denote \( x \) as the cost of labor per hour.
The technician worked for 3 hours, so the total cost for labor would be \( 3x \).
The equation can be set up as follows:
\[ 3x + 61 = 226 \]
Now, we can solve for \( x \):
- Subtract the cost of parts from the total cost:
\[ 3x = 226 - 61 \]
\[ 3x = 165 \]
- Divide both sides by 3 to find \( x \):
\[ x = \frac{165}{3} \]
\[ x = 55 \]
So, the cost of labor per hour is \( 55 \).
Answer: \( x = 55 \)