SOLUTION: Hi, having trouble with Matrix problems. This one is troubling me in particular: I have to write the following system of equations in matrix form: y + z = 0 - x + y - z = 9

Algebra ->  Matrices-and-determiminant -> SOLUTION: Hi, having trouble with Matrix problems. This one is troubling me in particular: I have to write the following system of equations in matrix form: y + z = 0 - x + y - z = 9      Log On


   

Question 195764: Hi, having trouble with Matrix problems.
This one is troubling me in particular:
I have to write the following system of equations in matrix form:
y + z = 0
- x + y - z = 9
x - z = 4
Proper working an explanations would be great!
Thabks -Nick.
Answer by arallie(162) About Me  (Show Source):
You can put this solution on YOUR website!
y + z = 0
- x + y - z = 9
x - z = 4
[ 0 1 1][0]
[-1 1 -1][9]
[ 1 0 -1][4]

[1/3 -1/3 2/3][0] [-1/3 ]
[2/3 1/3 1/3][9] [13/3 ]
[1/3 -1/3 -1/3][4] [-13/3]