It seems like you're working with an algebraic expression, but it's not quite clear whether it's a rational expression or an equation. Could you please clarify whether you're looking to simplify this expression or solve for a variable? Here's my interpretation based on what you've written:

If you meant:

$\frac{x}{x-6} + \frac{x-9}{x+2} + \frac{x+24}{x-x-12}$

Let me know if this matches your problem! If you want help simplifying or solving it, just clarify, and I can guide you through it.