The expression \(2x - 1x\) simplifies as follows:

\[
2x - 1x = (2 - 1)x = 1x = x
\]

So, \(2x - 1x\) simplifies to \(x\).

Would you like more details or have any questions about this?

Here are some related questions you might find interesting:
1. How do you factor expressions like \(3x - 2x\)?
2. What happens if you add or subtract different variables, like \(2x - 1y\)?
3. How would you solve the equation \(2x - 1x = 5\)?
4. Can you combine terms in an expression like \(4x + 2y - 3x\)?
5. How do you simplify an expression with multiple variables, such as \(2x + 3y - x + 2y\)?

**Tip:** When simplifying expressions, always combine like terms by adding or subtracting their coefficients.

Learn how to simplify the algebraic expression 2x - 1x with a step-by-step explanation. This problem introduces key concepts in algebra, such as combining like terms, and is suitable for students in Grades 6-8.

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