Let's simplify the expression:

\[
-2.4x + 3.5x - x
\]

1. Combine like terms:
   \[
   (-2.4 + 3.5 - 1)x = 0.1x
   \]

So, the simplified expression is:

\[
0.1x
\]

Would you like further details or clarifications?

Here are 5 related questions to expand on this:
1. How would you simplify \(4.2x - 5.7x + 2x\)?
2. What is the result of combining terms like \(6x + 3y - 4x + y\)?
3. How do you handle subtraction when simplifying expressions with variables?
4. Can you simplify \( -2.5x + 4.5y - x + y\)?
5. How would the simplification change if there were no variable terms?

**Tip:** Always group like terms (terms with the same variable) before simplifying an algebraic expression.

Simplify the algebraic expression -2.4x + 3.5x - x by combining like terms. This problem introduces the core concept of simplifying algebraic expressions, suitable for students in Grades 6-8.

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