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Mathematics
Problem
The system of equations
x
1
−
x
2
+
x
3
=
−
6
,
3
x
1
−
x
2
+
2
x
3
=
−
6
x_1 - x_2 + x_3 = -6,\; 3x_1 - x_2 + 2x_3 = -6
x
1
−
x
2
+
x
3
=
−
6
,
3
x
1
−
x
2
+
2
x
3
=
−
6
and
3
x
1
+
x
2
+
x
3
=
−
18
3x_1 + x_2 + x_3 = -18
3
x
1
+
x
2
+
x
3
=
−
18
has (a) No solution (b) Exactly one solution (c) Infinite solutions (d) None of these (a) No solution (b) Exactly one solution (c) Infinite solutions (d) None of these
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