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The number of solutions of the system of equations  3x1y+z=5,6x4y+2z=10 and 9x6y+3z=15  is 

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a
0
b
1
c
2
d
infinite

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detailed solution

Correct option is D

Solution: Augmented matrix =3−1156−42109−6315R2−2R1R3−3R1~3−1150−2000−300R3−32R2~3−1150−2000000Given equation has infinite number of solutions


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The number of solutions of 2x+y=4,x2y=2,3x+5y=6  is


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