Respuesta :

Answer:

  • 12x + 6

Step-by-step explanation:

Given

  • XY = 4x + 7 and YZ = 8x – 1
  • XZ = ?

As per angle addition postulate

  • XZ = XY + YZ
  • XZ = 4x + 7 + 8x - 1
  • XZ = 12x + 6