elmer104823 elmer104823
  • 27-03-2021
  • Mathematics
contestada

Triangle Theorems sold for X

Triangle Theorems sold for X class=
Relax

Respuesta :

akposevictor
akposevictor akposevictor
  • 01-04-2021

Answer:

x = 8

Step-by-step explanation:

Apply the exterior angle theorem.

Thus:

45 + 6x + 7 = 13x - 4

Add like terms

52 + 6x = 13x - 4

52 + 6x - 13x = 13x - 4 - 13x

52 - 7x = -4

52 - 7x - 52 = -4 - 52

-7x = -56

-7x/-7 = -56/-7

x = 8

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