It seems like there might be a small typo in your question regarding the variable. To solve for \( z \) in the equation you provided, let's assume you meant:
\[ \frac{z}{-5} = 2 \]
To solve for \( z \), you can multiply both sides of the equation by \(-5\):
\[ z = 2 \times -5 \] \[ z = -10 \]
If you were asking for a different variable (like \( x \)), please clarify, and I can assist you further!