The expression \( 3x + 5 - 2x + 7 \) can be simplified by combining like terms:

- Combine the \(x\)-terms: \( 3x - 2x = x \)
- Combine the constants: \( 5 + 7 = 12 \)

Thus, the simplified expression is:
\[
x + 12
\]

Would you like more details or have any questions?

Here are 5 related questions to expand on this concept:
1. How do you simplify expressions with multiple variables?
2. What happens when there are negative coefficients in an expression?
3. How can you solve for \(x\) if this expression is set equal to a number?
4. How do you factor expressions like this one?
5. What is the distributive property, and how does it apply to expressions?

**Tip**: Always combine like terms first when simplifying expressions to make calculations easier!

Learn how to simplify the algebraic expression 3x + 5 - 2x + 7 by combining like terms. This step-by-step guide covers essential algebraic concepts and properties, suitable for students in Grades 6-8.

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