SOLUTION: x1 − 2x2 + x3 = −1 2x1 + x2 − 2x3 = 2 x1 + 3x2 − 3x3 = 3 (x1, x2, x3) =

Question 1108011: x1 − 2x2 + x3 = −1
2x1 + x2 − 2x3 = 2
x1 + 3x2 − 3x3 = 3
(x1, x2, x3) =

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
x1 − 2x2 + x3 = −1
2x1 + x2 − 2x3 = 2
x1 + 3x2 − 3x3 = 3
(x1, x2, x3) =
====================

|1  -2   1  -1|
|2   1  -2   2|
|1   3  -3   3|

Row 3 minus row 2 = row 1.
--> dependent, no unique solution.

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SOLUTION: x1 &#8722; 2x2 + x3 = &#8722;1 2x1 + x2 &#8722; 2x3 = 2 x1 + 3x2 &#8722; 3x3 = 3 (x1, x2, x3) =

SOLUTION: x1 − 2x2 + x3 = −1 2x1 + x2 − 2x3 = 2 x1 + 3x2 − 3x3 = 3 (x1, x2, x3) =