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    Help with simple algebra problem please

    1/x + 1/x+16 = 1/15


    I need some quick help please.
    You don't have to like what he did, but I would hope that you can appreciate the time, money and love that went in to the build. If you can't, you're not really an enthusiast, just another dumb kid with a car.-visualpoet
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    #2
    dam dude im sorry but i cant help you, i wish i could but when i see numbers and letters together in math problems my brain freezes
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      #3
      should have asked this like 6 years ago be for i left school...but as for no

      i agree with him/\/\ brain freeze

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        #4
        Ninja edit: 1/x+1/x+16 = 1/15
        2/x+16 = 1/15
        2/x = 1/15-16
        x = 2/(1/15-16)
        x = 2/(-239/15)
        x = (30/15)/(-239/15)

        x = -30/239

        or
        x = 2/(-239/15)
        x = 2/-15.9888888888

        x = -0.125523012553
        Last edited by cuate01221; 05-13-2011, 09:55 PM.

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          #5
          is that 1 divided by x plus 1 divided by x plus 16 = 1 divided by 15 ?

          OR

          is that 1 over x plus 1 over x plus 16 = 1 over 15

          ???
          Been a long time. Still alive...

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            #6
            that's a joke btw.....
            Been a long time. Still alive...

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              #7
              You'd have to find the LCD, least common denominator, which is 15X, then multiply every term(separated by either a + a - or an = sign) so that you can cross out anything they have in common in the denominator.

              For the first term 1/x you would multiply it by 15x. The x's cross out so your left with 15 * 1 which 15.

              Same for the next, since you have no denominator for 16, you just multiply to get 240X.

              then = 1/15 * 15X , the 15's would cross out so it would just be 1*x or 1X.

              So your new problem is 15 + 15 + 240X = X

              Then you just balance it out.

              subtract an X from both sides, your left with 15 + 15 + 239X = 0

              Subtract 15 from both sides twice so now it's 239X = -30

              Then divide -30 by 239. I'd leave it as - 30/239 unless it reduces.

              So X = - 30/239
              Last edited by WilliamW; 05-13-2011, 10:09 PM.
              Been a long time. Still alive...

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                #8
                thank god i finished high school in 1984.

                you guys lost me at 1/x
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                  #9
                  I literally just finished my Math 098 beginning algebra class yesterday. I got a 104% in the class after my final. It really sucks not going to college for 6 years, but seriously it's just some A's and B's and X and Y and PRESTO you have an acceptable answer!
                  Been a long time. Still alive...

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                    #10
                    Originally posted by cuate01221 View Post
                    x = -0.125523012553
                    I also came up with this answer.

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                      #11
                      Originally posted by Dobermann View Post
                      Originally Posted by cuate01221
                      x = -0.125523012553
                      I also came up with this answer.
                      x2

                      (Did I just make a bad pun ?)

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