Answer:
[tex] \frac{2}{x} - \frac{3}{y} = \frac{1}{z} \\ \frac{2}{x} - \frac{1}{z} = \frac{3}{y} \\ y = \frac{3}{\frac{2}{x} - \frac{1}{z} } \\ y = \frac{3xz}{2z - x} [/tex]