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Linear system/5 variables/Subsystem/Exercise
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Solve the system of linear equations
3
x
−
67
y
+
14
z
−
123
u
−
51
w
=
5
,
{\displaystyle {}3x-67y+14z-123u-51w=5\,,}
8
x
−
11
y
+
12
z
−
27
u
−
65
w
=
51
,
{\displaystyle {}8x-11y+12z-27u-65w=51\,,}
66
x
−
67
y
−
77
z
−
u
+
100
w
=
0
,
{\displaystyle {}66x-67y-77z-u+100w=0\,,}
8
x
−
11
y
+
12
z
−
27
u
−
65
w
=
−
15
,
{\displaystyle {}8x-11y+12z-27u-65w=-15\,,}
−
301
x
+
44
y
+
33
z
−
31
u
−
18
w
=
571
.
{\displaystyle {}-301x+44y+33z-31u-18w=571\,.}
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