What is wrong with this equation?

Discussion in 'General Chat' started by mayank6169, Oct 18, 2013.

0
  1. #1
    x=y
    5x=5y
    2x+3x = 2y+3y
    2x - 2y = 3y - 3x
    2(x-y) = -3(x-y)
    (x-y) can be canceled from both the side
    2 = -3
    How?
     
    mayank6169, Oct 18, 2013 IP
  2. FreeFun4Every1

    FreeFun4Every1 Prominent Member

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    #2
    Lets go one step ahead :cool:
    2 = -3
    2+3 = 0

    wohooooooo new Math invented :rolleyes:
     
    FreeFun4Every1, Oct 18, 2013 IP
  3. sarahk

    sarahk iTamer Staff

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    #3
    This step is wrong. Having trouble with your homework?
     
    sarahk, Oct 21, 2013 IP
  4. crazy4warez

    crazy4warez Well-Known Member

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    #4
    Hey Sarah! That step is absolutely correct. :)
    ---------
    The problem is in this step:
    2(x-y) = -3(x-y)
    (x-y) can be canceled from both the side

    Reason:
    (x-y) cannot be cancelled from both sides because x-y=0 and cancelling zero on both sides doesn't make any sense. It only means that you are dividing by zero on both sides, the result of which would leave undefined as an answer on both sides. Hope this helps. :)
     
    Last edited: Oct 23, 2013
    crazy4warez, Oct 23, 2013 IP
  5. mayank6169

    mayank6169 Active Member

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    #5
    Lol that's right I just wanna check how many answer it correctly. This the question my grandpa gave to me ;)
     
    mayank6169, Oct 23, 2013 IP