Respuesta :

Medunno13

Answer:

110

Step-by-step explanation:

  • 2x + 15 = ((10x+20)-80)/2
  • 4x + 30 = 10x - 60
  • 30 = 6x - 60
  • 90 = 6x
  • x = 15

So, 10x+20=170.

As the circumference of a circle is 360°, z is equal to 110.

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