Three equations are given below.           x   -    3y    +     2z    = -12           x    +    y      -    6z   =   4          2x    -    5y   -  5z     = -20 Solve the system of equations using: “Addition” (Gaussian elimination) method              Matrix

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Three equations are given below.

          x   -    3y    +     2z    = -12

          x    +    y      -    6z   =   4

         2x    -    5y   -  5z     = -20

Solve the system of equations using:

  1. “Addition” (Gaussian elimination) method           

 

  1. Matrix Method 

This was extracted from a text book with the marking scheme attached it is a practice question for my course

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