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If (x,y,z) is the solution of the equat...

If (x,y,z) is the solution of the equations
`x - y - 2z = 3`
`2x + y + 4z = 5`
`4x - y - 2z = 11`
then the value ofy equals

A

0

B

`-1//2`

C

`-1//3`

D

`-1//4`

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