Show us the first step that you tried and we'll see if you're on the right track.
If someone could please help me with this. its a question about Solving a system using elementary row operations which is honestly one of the easiest and msot simple things to do but for the life of me I cannt understand what I am doing wrong
I solved the system so i know what hte answers are but when doing elementary row operations method i keep getting wrong answers
the Matrix is as per below
3 -2 1 2
1 -1 -1 -4
4 1 -2 0
please if someone could could..just really frustrated at this point
here is how i started the soln
Divide row1 by 3
1 -2/3 1/3 2/3
1 -1 -1 -4
4 1 -2 0
Add (-1 * row1) to row2
1 -2/3 1/3 2/3
0 -1/3 -4/3 -14/3
4 1 -2 0
Add (-4 * row1) to row3
1 -2/3 1/3 2/3
0 -1/3 -4/3 -14/3
0 11/3 -10/3 -8/3
right now im about to divide row 2 by -1/3 and will get back to you soon