1. **State the problem:** Evaluate the expression for $x=5$ and $x=10$.
2. **Identify the expression:** Since the expression is not given, let's assume a general example: $y = 2x + 3$.
3. **Evaluate for $x=5$:**
$$y = 2(5) + 3 = 10 + 3 = 13$$
4. **Evaluate for $x=10$:**
$$y = 2(10) + 3 = 20 + 3 = 23$$
5. **Final answers:**
- When $x=5$, $y=13$.
- When $x=10$, $y=23$.
Evaluate Expression 978D66
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