Respuesta :

Answer:

x = 13

Step-by-step explanation:

from the diagram

NM + ML + LK = NK ( substitute values )

x - 6 + 9 + 2x - 19 = 23

3x - 16 = 23 ( add 16 to both sides )

3x = 39 ( divide both sides by 3 )

x = 13