please solve for x and explain every step in detail!!! it’s urgent

Answer:
[tex] x = zk + z + \mu[/tex]
Step-by-step explanation:
[tex] z = \frac{x - \mu}{k + 1} \\ \\ z(k + 1) = x - \mu \\ \\ z(k + 1) + \mu =x \\ \\ \red{ \bold{ x = zk + z + \mu}}[/tex]