The system \( \mathrm{P} \) \[ \begin{array}{l} x+y-z=2 \\ 2 x+3 y-...

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The system
\( \mathrm{P} \)
\[
\begin{array}{l}
x+y-z=2 \\
2 x+3 y-4 z=3 \\
-x+2 y+3 z=9
\end{array}
\]
is having
(1) unique solutions
(2) infinite solutions
(3) no solutions
(4) none of these
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