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B Inverse Function

  1. May 31, 2016 #1
    Please take a look in below image. How do they get 2y = x + 2?
    upload_2016-5-31_16-54-20.png
     
  2. jcsd
  3. May 31, 2016 #2

    Merlin3189

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    They simply multiply every term by 2.
    2 * y -> 2y
    2 * ##\frac12## x -> x
    2 * 1 -> 2
     
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