avilesestefanie15 avilesestefanie15
  • 25-09-2020
  • Mathematics
contestada

|3x-7| + 7 = 9 What is the first solution?

Plzzz help

Respuesta :

mhanifa
mhanifa mhanifa
  • 25-09-2020

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
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