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I: The system of equations x+y+z=6,x-y+z...

I: The system of equations `x+y+z=6,x-y+z=2, 2x-y+3z=9` has unique solution.
II: The system of equations `x+y+z=3, 2x+2y-z=3,x+y-z=1` has infinitely many solutions

A

only I is true

B

only II is true

C

Both I, II are true

D

neither I nor II are true

Text Solution

Verified by Experts

The correct Answer is:
C
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