Answer:
[tex]z=\frac{dp+59}{2-p}[/tex]
Step-by-step explanation:
[tex]-p(d+z) = -2z+59\\\\-dp-pz=-2z+59\\\\-pz=-2z+59+dp\\\\-pz+2z=dp+59\\\\z(2-p)=dp+59\\\\z=\frac{dp+59}{2-p}[/tex]