alinedawit alinedawit
  • 19-09-2022
  • Mathematics
contestada

-14 < 7x < 21
Solve the compound iniquity and graph it’s solution.

Respuesta :

profarouk profarouk
  • 19-09-2022

Answer:

-2 < x < 3

Step-by-step explanation:

-14 < 7x < 21

Divide all three sides by 7 :

[tex]-14 < 7x < 21[/tex]

[tex]\Longleftrightarrow \frac{-14}{7} < \frac{7x}{7} < \frac{21}{7}[/tex]

[tex]\Longleftrightarrow -2 < x < 3[/tex]

The solution in interval notation (-2 , 3)

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