SOLUTION: Use the echelon method to solve the system:
x + 3y + 4z = 14
2x – 3y +2z = 10
3x – 9y + z = 9
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Question 311396: Use the echelon method to solve the system:
x + 3y + 4z = 14
2x – 3y +2z = 10
3x – 9y + z = 9
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
So: 
, 
, and 
Check:
\ +\ 3(0)\ +\ 4(3)\ =\ 2\ +\ 12\ =\ 14)
\ -\ 3(0)\ +\ 2(3)\ =\ 4\ +\ \ \,6\ =\ 10)
\ -\ 9(0)\ +\ \ \,(3)\ =\ 6\ +\ \ \,3\ =\ 9)
John
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