Respuesta :

Answer:

  • x = 17

Step-by-step explanation:

  • 6(x - 7)= 2x + x + 9
  • 6x - 42 = 3x + 9
  • 6x - 3x = 9 + 42
  • 3x = 51
  • x = 51/3
  • x = 17