x + 2y + z = 4 2x + y +...

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x + 2y + z = 4
2x + y + 2z = 5
x - y + z = 1
The system of algebraic given below has

A. A unique solution of x = 1, y = 1 and z = 1

B. only the two solutions of (x = 1, y = 1, z = 1) and (x = 2, y = 1, z = 0)

C. infinite number of solutions

D. no feasible solution

Answer: Option C

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