Aufgabe:
LGS lösen
x2 +x3 = 1
x1+ 2x2+ x3 =3
2x1-x2 + 6x3 =3
Problem/Ansatz:
| x2 +x3 = 1
|| x1+ 2x2+ x3 =3
||| 2x1-x2 + 6x3 =3
umsortieren:
|| x1+ 2x2+ x3 =3
| x2 +x3 = 1
||| 2x1-x2 + 6x3 =3
--------------------------------
|||a = ||| -2*||= -5x2 +4x3 = 0 |||b = |||a - 4* | = -9x2 = -12
---------------------------------
|| x1+ 2x2+ x3 =3
| x2 +x3 = 1
|||b -9x2 = -12
hab ich das richtig gemacht?