Question

solve the system of equation using elementary row operations please
x1 +x3+x4-2x5=1
2x1 + x2+ 3x3 -x4 +x5=0
3x1- x2 +x4 +4x3 +x4 +x5 =1

Answer 1

[A|I]
solve that

Answer 2

wait thats to find its inverse.

Answer 3

can i not do it without the inverse say....
1 0 1 1 -2|1
0 0 0 -3 5|-2
0 0 2 -5 12| -4

Answer 4

1 0 1 1 -2|1
0 1 1 -3 5|-2
0 0 2 -5 12| -4