Good evening, everyone!
There are two problems that I'm having difficulty figuring out on my homework. I'd really appreciate the help!
(1) 2x - y = 2
-x + 3y + 2z = 1
x + 2y + 2z = -1
I created an augmented matrix from this and row reduced to the point where I have:
|1 -3 -2 | -1|
|0 1 4/5 | 0|
|0 5 4 | 0|
Not sure if I did incorrect calculations or what, but I have no idea where to go from here (provided I did the correct calculations up to this point). Please help me out!
(2) w + 2x - y - 2z = -1
x - y = -1
-w + 2x + z = -1
Here I also row reduced but only went through one round of reducing before coming to the conclusion that there's no solution...Yes or no?
Please, please help -- I really am quite lost with both of these!