Respuesta :

Answer:

30

Step-by-step explanation:

If they are parallel then the 2 labelled angles sum to 180.

2x+50+5x-80=180

7x-30=180

7x=210

x=30

Answer:

X=30

Step-by-step explanation:

2x+50+5x-80=180

7x-30=180

7x=210

×=30