Since $3 \ge -2$, we use the second equation to find $f(3) = 5 - 2(3) = \boxed{-1}$.
The answer is: -1
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
What is the value of $f(3)$ for the piecewise function $f(x)$ defined as \[f(x) =
\begin{cases}
2x + 9 &\text{if }x<-2, \\
5-2x&\text{if }x\ge -2?
\end{cases}\]

### Answer:
