ecmccoy
ecmccoy ecmccoy
  • 12-12-2020
  • Mathematics
contestada

Solve: 2|x -1| - 3 ≥ 15.

x ≥ -10 or x ≤ -8
x ≥ 10 or x ≤ 8
x ≥ 10 or x ≤ -8
x ≥ -10 and x ≤ 8

Respuesta :

vanessaakaraiwe123
vanessaakaraiwe123 vanessaakaraiwe123
  • 12-12-2020

Answer:

x ≥ 10 or x ≤ -8

Step-by-step explanation:

2|x - 1| - 3 ≥ 15

Add 3 to both sides;

2|x - 1| ≥ 18

Divide both sides by 2

|x - 1| ≥ 9 or |x - 1| ≤ -9

x - 1 ≥ 9 or x - 1 ≤ -9

Add 1 to both sides;

x ≥ 10 or x ≤ -8

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