Question

-x+y+z=-3
-x+3y-9z=-17
7x-4y-22z=0
solve the following system of equations using matrices(row operations)

Answer 1

Here is an example I did a couple months back http://openstudy.com/users/iambatman#/updates/53b319b9e4b072c759d78d8e give this a read.

Answer 2

okay so i followed the steps, and the answer that i have is (6z-4,5z-7,z) but im not sure how the answer has z in it

Answer 3

It seems you didn't solve for all the variables. If you could show your steps, that would be very helpful and I could pinpoint exactly where you got stuck.

Answer 4

i dont know, im am very confused on what i did and how i did it. it doesnt seem right at all

Answer 5

If you could follow exactly my steps from the link I shared, and give an attempt, and if that doesn't work out, I will help you through it.

Answer 6

Okay, sounds good :)