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X + a =?

  1. Sep 25, 2009 #1
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 25, 2009 #2
    x + a = x + a
     
  4. Sep 25, 2009 #3

    Dick

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    If X+a=? then X=?-a.
     
  5. Sep 25, 2009 #4
    X + a = a + X, if defined in context.
     
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