The expression you provided is \( 9 \times x - y \), which can be written mathematically as:

\[
9x - y
\]

This expression represents 9 times a variable \( x \), minus another variable \( y \).

Would you like more details or have any other questions?

Here are five related questions:

1. What happens if \( x = 2 \) and \( y = 5 \)? What is the value of the expression \( 9x - y \)?
2. How would you solve the equation \( 9x - y = 0 \) for \( x \)?
3. What is the effect of increasing \( y \) on the value of the expression \( 9x - y \)?
4. How would the expression change if it was \( 9x + y \) instead of \( 9x - y \)?
5. Can you graph the equation \( y = 9x - y \)?

**Tip:** When dealing with expressions involving multiple variables, remember that each variable can represent a different value, and the expression's outcome depends on the values assigned to these variables.

Explore the mathematical expression 9 times x minus y and learn how to manipulate it algebraically. This problem involves linear equations and requires understanding basic algebraic operations. Suitable for students in Grades 7-9.

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