Respuesta :

Answer:

  • Option A

Step-by-step explanation:

According to the matrix, the system is:

  • 3x + 2y -z = 4
  • 0x + 3y + 7z = 8 ⇒ 3y + 7z = 8
  • x - 3y + 4z = 7

Correct match is A