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If the given system alphax+y+z=5 , x+2y+...

If the given system `alphax+y+z=5 , x+2y+4z=4 and x+3y+5z=beta` has infinity many solution then `alpha , beta` is

A

`0,9`

B

`-1,-3`

C

`-1,3`

D

`1,-3`

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