Problem
Solve for $w$ in terms of $x, y$, and $z$. \[ \begin{array}{l} z=-x w y \\ w= \end{array} \]
Solution
Step 1 ：Divide both sides of the equation by \(-xy\): \(w = \frac{z}{-xy}\)
Step 2 ：Simplify the expression: \(\boxed{w = \frac{-z}{xy}}\)
