Respuesta :

Answer:

15 degrees.

Step-by-step explanation:

  1. 5x + x + 90 = 180.
  2. 6x + 90 = 180.
  3. 6x = 90.
  4. x = 15.

These are all of the steps to completely get the correct answer to this question.

Hope this helps!!!

Kyle.

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