Help me please

lfalgoust02

New member
Joined
Jul 18, 2005
Messages
23
Using the argumented matrix x+y=3 show the results obtained by
2x-3y=6
multiplying the elements in row 2 by -1 and adding the products to their corresponding elements in row 3.
 
Two rows are enough for me so I'll ignore your row comments.
Code:
[ 1  1  3
  2 -3  6]

-2*row 1 added to row 2
[ 1  1  3
  0 -5  0]

-1/5 * row 2
[ 1  1  3
  0  1  0]

-1 * row 2 added to row 1
[ 1  0  3
  0  1  0]
 
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