## Algebra 2 (1st Edition)

$$z=\frac{x+y}{xy-1}$$
In order to solve for z, we must get all of the z terms on one side of the equation and then isolate z. Thus, we find: $$xyz-z = x+y \\ z(xy-1)=x+y \\ z=\frac{x+y}{xy-1}$$