What is the value of z?

Answer:
The angle z is 130 degrees.
Step-by-step explanation:
A straight line is 180 degrees.
Now think about how that line looks, you cut 50 degrees off of the whole 180.
So the equation is 180-50=z
z=130
I hope I have been of assistance to you, have a good day.
[tex]\huge \bf༆ Answer ༄[/tex]
The Angles shown in the diagram makes linear pair on the straight line [ hence, their sum measures 180° ]
that is ;
[tex]{ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:z + 50 = 180[/tex]
[tex]{ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:z = 180 - 50[/tex]
[tex]{ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:z = 130 \degree[/tex]
Hence, required value of z is 130°