Respuesta :

Let's simplify step-by-step.
2
z

4

z
=
2
z
+

4
+

z
Combine Like Terms:
=
2
z
+

4
+

z
=
(
2
z
+

z
)
+
(

4
)
=
z
+

4

Answer:

z=4

Step-by-step explanation:

2z - 4 - z

2z-z - 4

1z-4

1z-4+4=4

1z=4

1/1z=4/1

z=4