Escalonamento
x-3y+6z=-19
3x+2y-5z=21
-2x+5y-z=22
Soluções para a tarefa
1 -3 6 -19
3 2 -5 21
-2 5 -1 22
L2=L2-3L1
L3=L3+2L1
1 -3 6 -19
0 11 -23 78
0 -1 11 -16
L2=L2+11L3
1 -3 6 -19
0 0 98 -98
0 -1 11 -16
L2=(1/98)L2
L2 <> L3
1 -3 6 -19
0 -1 11 -16
0 0 1 -1
L1=L1-6L3
L2=L2-11L3
1 -3 0 -13
0 -1 0 -5
0 0 1 -1
L1=L1+3L2
1 0 0 2
0 -1 0 -5
0 0 1 -1
L2=(-1)*L2
1 0 0 2
0 1 0 5
0 0 1 -1