Consider the following system of equations in three real variables x1, x2 and x3
2x1 - x2 + 3x3 = 1
3x1 - 2x2 + 5x3 = 2
-x1 - 4x2 + x3 = 3
This system of equations has
A. no solution
B. a unique solution
C. more than one but a finite number of solutions
D. an infinite number of solutions
Answer: Option B
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