Respuesta :

Answer:

  • 3 and 5/3

Step-by-step explanation:

Solving in steps:

  • |3x-7| + 7 = 9
  • |3x-7|  = 2

1. If 3x - 7 > 0

  • 3x - 7 = 2
  • 3x = 9
  • x = 3

2.  If 3x - 7 < 0

  • 3x - 7 = -2
  • 3x = 5
  • x = 5/3