Let's simplify the expression $9x - 4y + 5x - 2y$.

1. Combine the like terms involving $x$: $9x + 5x = 14x$

2. Next, combine the like terms involving $y$: $-4y - 2y = -6y$

So, the simplified expression is: $14x - 6y$

Would you like any further details or explanations?

Here are 5 related questions:

1. How would you simplify $7x + 3y - 2x + y$?
2. What is the result of $10a - 4b + 3a + 2b$?
3. How do you factor the expression $14x - 6y$?
4. What is the result of combining $6m - 4n + 3m + 5n$?
5. How do you solve the equation $14x - 6y = 0$ for $y$?

Tip: When simplifying expressions, always group and combine like terms (terms with the same variables) first.