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row operations

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Augmented matrix: independent, dependent, or inconsistent? 2009-02-23
Anna pose la question :
Perform row operations on the augmented matrix as far as necessary to determine whether the system is independent, dependent, or inconsistent.

x + y + z = 11
x - y + 3z = 5
2x + 2y + 2z = 15

Harley Weston lui répond.
Using the augmented matrix 2008-10-17
Karlena pose la question :
I am supposed to write the augmented matrix of the system and use the matrix method to solve the system. I must show my work algebraically

x+y+2z=30
2x+3y+2z=53
x+2y+3z=47

Harley Weston lui répond.
An augmented matrix 2007-11-29
Beth pose la question :
I am having troubles fiinding this augnmented matrix. I know how to do it but everytime i do it it get a different answer and its not the right answer. Could you help me to make sure I do it right?

Here is the problem:
4x - 3y = 5
2x +9y = 6

Harley Weston lui répond.
An augmented matrix 2002-04-20
A student pose la question :
Hi my math teacher asked us to solve an augmented matrix. I am in twelfth grade and need help. The book we are working on is college algebra. Here it is

a+2b+c=0
2a+5b+4c=-1
a-b-9c=-5


Penny Nom lui répond.
 
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