3 Gleichungen mit 3 Unbekannten
a
11
=
a
12
=
a
13
=
b
1
=
a
21
=
a
22
=
a
23
=
b
2
=
a
31
=
a
32
=
a
33
=
b
3
=
zurück
x
1
=
x
2
=
x
3
=