Matrices with Mathematica 5.1

*To*: mathgroup at smc.vnet.net*Subject*: [mg63315] Matrices with Mathematica 5.1*From*: "drizkol" <drizkol at gmail.com>*Date*: Fri, 23 Dec 2005 05:08:38 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

I would like to solve the system given by: [1 7 -2 0 -8 -3] [0 0 1 1 6 5] [0 0 0 1 3 9] [0 0 0 0 0 0] Where the matrix is a typical matrix in the form x1+x2+...+xn = b where b is the last item in the row. For example, row 1 could be written as x1 + 7x2 - 2x3 -8x4 = -3. How could I get mathematica to solve this matrix? I understand how to build a matrix, I just need to know the operation to run on it. I tried to use LinearSolve but I did something wrong. Is there a built-in operation to solve these matrices? If so, please tell. Thanks.

**Follow-Ups**:**Re: Matrices with Mathematica 5.1***From:*Murray Eisenberg <murray@math.umass.edu>

**Re: Matrices with Mathematica 5.1***From:*Pratik Desai <pdesai1@umbc.edu>

**Re: Matrices with Mathematica 5.1***From:*gardyloo@mail.wsu.edu