SOLUTION: 3y + 2z = 2 2x − y − 3z = 2 2x + 2y − z = 4 (x, y, z) =

Algebra ->  Matrices-and-determiminant -> SOLUTION: 3y + 2z = 2 2x − y − 3z = 2 2x + 2y − z = 4 (x, y, z) =       Log On


   

Question 1108013: 3y + 2z = 2
2x − y − 3z = 2
2x + 2y − z = 4
(x, y, z) =

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3y + 2z = 2
2x − y − 3z = 2
2x + 2y − z = 4
(x, y, z) =
=====================
|0   3   2   2|
|2  -1  -3   2|
|2   2  -1   4|

==========
Det = 0 -3*(-2+6) + 2*(4+2) = -12 + 12 = 0
No unique solution.
The 3rd equation is the sum of the 1st 2.