Re: New user: Abs[] problem

• To: mathgroup at smc.vnet.net
• Subject: [mg50112] Re: [mg50079] New user: Abs[] problem
• From: DrBob <drbob at bigfoot.com>
• Date: Sun, 15 Aug 2004 03:14:54 -0400 (EDT)
• References: <200408140550.BAA15327@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Reduce[x + 1 - Abs[2*x - 4] + Abs[5 - x] == 0, x]
x == -1 || Re[x] >= 5 && Im[x] == 0

Plot[x+1-Abs[2x-4]+Abs[5-x],{x,-2,10}]

Bobby

On Sat, 14 Aug 2004 01:50:33 -0400 (EDT), <Edson.Brusque at smc.vnet.net> wrote:

> Hello,
>
>      I'm starting Electrical Engineering and using Mathematica for
> helping me in Calculus e Algebra studies.
>
>      I'm trying to solve this equation on Mathematica:
>          x + 1 - |2x - 4| + |5 - x| = 0
>
>      on the Math* notebook I'm typing:
>          Solve[x + 1 - Abs[2x - 4] + Abs[5 - x] == 0,x]
>
>      but only got an empty output: {{}}
>
>      Someone please can help me get Math* to solve this?
>
>      Thank you very much,
>
>      Edson Brusque
>
> ---------------------------------------------------------------------
> Edson Brusque                     C.I.Tronics Lighting Designers Ltda
> Research and Development                   Blumenau  -  SC  -  Brazil
> http://www.suporte.ind.br/ryan/netiqueta.htm     www.citronics.com.br
> ---------------------------------------------------------------------
>
>
>
>
>

--
DrBob at bigfoot.com
www.eclecticdreams.net

```

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