Respuesta :

Answer:

A. 30 - y.

Step-by-step explanation:

< GLQ = 180 - 30 = 150.

So  < z + <LGQ = 180 - 150 = 30.

< LGQ = < y (opposite angles)

So  z + y = 30

So z = 30 - y.

Good evening ,

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Answer:

z = 30 - y

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Step-by-step explanation:

x=180-30=150

z+x+y=180

Then

z=180-(x+y)

=180-(150+y)

=180-150-y

=(180-150)-y

=30-y.

:)