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23-09-2019
Mathematics

contestada

What is the solution of 3|2x + 7| – 9 < 0?

A) x < –5 or x > –2
B) –5 < x < –2
C) x < –2 or x > 2
D) –5 < x < 2

Respuesta :

23-09-2019

Answer:

B) -5 < x < -2

Step-by-step explanation:

3|2x + 7| – 9 < 0

3|2x + 7| < 9

|2x + 7| < 3

-3 < (2x + 7) < 3

-10 < 2x < -4

-5 < x < -2

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