SOLUTION: How can I solve this by using Guass-Jordan Elimination?? 1 -1 1|6 2 1 1| 3 1 1 1| 2

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Question 957911: How can I solve this by using Guass-Jordan Elimination??
1 -1 1|6
2 1 1| 3
1 1 1| 2

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
Your matrix



Find the pivot in the 1st column in the 1st row



Eliminate the 1st column



Make the pivot in the 2nd column by dividing the 2nd row by 3



Eliminate the 2nd column



Make the pivot in the 3rd column by dividing the 3rd row by 2/3



Eliminate the 3rd column




Solution set:




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