skepticalskeppy14 skepticalskeppy14
  • 27-05-2021
  • Mathematics
contestada

Find the value of x.

Find the value of x class=

Respuesta :

altavistard
altavistard altavistard
  • 27-05-2021

Answer:

x = 4

Step-by-step explanation:

The angle next to (adjacent to) 19x + 3 is 180 degrees less (19x + 3):

180 - (19x + 3)

and the three interior angles of the triangle must sum up to 180 degrees:

11x - 2 + 180 - 19x - 3 + 9x + 1 = 180, or

11x - 2 - 19x - 3 + 9x + 1 = 0

Combining like terms, we get:

x = 4

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