Question

Gaussian Elimination answer check please!
2x+y-z=0 I got x=56/3, y=-20/3, z=8/3
x-y+2z=-3
-x+2y-3z=7

Answer 1

there is some error in steps, you need to show your steps, i'll help you spot it and correct it.

Answer 2

ok hold on i'm drawing it

Answer 3

how did you get -2 ?
if you have done R2=R2+R3
then 2-3 =-1
and not -2

Answer 4

which step is that? I went downwards direction

Answer 5

oh, you did R3=R2+R3 ?
its very unclear to read...

Answer 6

sorry. here's a better picture if what i did was unclear