The expression in the image is:

$-2x + 3 + 2x$

Step-by-step simplification:

1. Combine the $x$-terms: $-2x + 2x = 0$

2. The expression simplifies to: $3$

Final Answer:

The simplified expression is: $\boxed{3}$

Would you like more details or have any questions?

Here are five related questions to explore further:

1. How do you combine like terms in more complex expressions?
2. What happens when constants are included with variables of different powers (e.g., $x^2, x$)?
3. How do you handle expressions with parentheses, such as $(-2x + 3) + 2x$?
4. What methods can you use to simplify polynomial expressions?
5. What role does the distributive property play in simplifying expressions?

Tip: Always group like terms carefully to simplify expressions efficiently.