frostberry112 frostberry112
  • 24-10-2019
  • Mathematics
contestada

find values of x 0=3|x-5|-15j

find values of x 03x515j class=

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sqdancefan
sqdancefan sqdancefan
  • 06-11-2019

Answer:

  x ∈ {0, 10}

Step-by-step explanation:

It is convenient to divide by 3:

  0 = |x -5| -5

Add 5:

  5 = |x -5|

Unfold the absolute value:

  ±5 = x -5

Add 5:

  5+5 = x = 10 . . . . use the "plus" of "plus or minus"

  5 -5 = x = 0 . . . . use the "minus" of "plus or minus"

The values of x that make the equation true are 0 or 10.

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