Hi, sorry for introducing myself. I was just frustrated because I've been trying to do this problem for awhile.

4x+y-3z=11

2x-3y+2z=9

x+y+z=-3

4 1 -3 11

0 -1 0 3

0 3 7 -23

R2+2R3-->R2

4R3+-R1-->R3

3R1+-R3-->R1

4 0 2 56

0 -1 0 3

0 3 7 -23

I'm stuck here.

The calculator gave me

1 0 0 7/18

0 1 0 -3

0 0 1 -7/18

Please tell me where I went wrong thanks