Darksideconroy2480 Darksideconroy2480
  • 02-10-2019
  • Mathematics
contestada

Solve the absolute value inequality|2x+3|≥|x−7|

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nuuk nuuk
  • 03-10-2019

Answer:[tex]x\geq 7[/tex]

Step-by-step explanation:

Given

[tex]|2x+3|\geq |x-7|[/tex]

here we will divide x interval in 3 case

case [tex]x<\frac{-3}{2}[/tex]

let us take x=-2

|-1| is not greater than |-9|

thus [tex]x<\frac{-3}{2}[/tex] is not possible

Case     [tex]\frac{-3}{2}<x<7[/tex]

Take x=0

|3| is less than |-7|

thus for  [tex]\frac{-3}{2}<x<7[/tex] equality is not satisfied

Case 3   [tex] x\geq 7[/tex]

take x=7

|17| is greater than |0|

Thus for[tex]x\geq 7[/tex] is the required region

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