karalinr karalinr
  • 18-09-2017
  • Mathematics
contestada

Solve |2c+8|=|10c|
.

Respuesta :

rpereinarob121
rpereinarob121 rpereinarob121
  • 18-09-2017
c1= -2(over)-3 , c2=1
Answer Link
slicergiza slicergiza
  • 18-09-2019

Answer:

[tex]c = 1\text{ or }c = -\frac{2}{3}[/tex]

Step-by-step explanation:

Here, the given equation,

|2c+8|=|10c|

( since, |x| = x if x > 0 and |x| = -x if x < 0 )

⇒ 2c + 8 = ± 10c

⇒ 8 = -2c ± 10c

⇒ 8 = -2c + 10c or 8 = -2c - 10c

⇒ 8 = 8c or 8 = -12c

[tex]\implies c = 1\text{ or }c = \frac{8}{-12}=-\frac{2}{3}[/tex]

Answer Link

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