Answer:
The value of z=-0.33 if z is in the denominator(below the line)
The value of z=-3 if z is in the numerator(above the line)
Explanation:
The equation is as follows from the information given if z is the in denominator:


We can multiply the whole equation with z:

Add up all the terms with z and simplify:

The value of z is -0.33
The equation is as follows from the information given if z is the in numerator:

Add up all the terms with z and simplify:
