System of linear
equations
a
11
x
1
+ a
12
x
2
+ a
13
x
3
=b
1
a
21
x
1
+ a
22
x
2
+ a
23
x
3
=b
2
a
31
x
1
+ a
32
x
2
+ a
33
x
3
=b
3
1.1
a
ik
, b
i
known,
find x
1
,
x
2
,
x
3
First let us recall what is a system of linear equations
