[" If the system of equations "],[x-2y+5...

[" If the system of equations "],[x-2y+5z=3],[2x-y+z=1],[" and "11x-7y+pz=q],[" has infinitely many solutions,then "],[[" (A) "p+q=2," (B) "p+q=10],[" (C) "p-q=2," (D) "p-q=5]]

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