Q 2741612523.     If `x=a, y=b, z=c` is a solution of the system of linear equations

`x+8y +7z= 0`
`9x +2y + 3z = 0`
`x + y+ z= 0`
such that the point (a, b, c) lies on the plane `x + 2y+ z =6` , then 2a +b + c equals :

JEE 2017 Mains 9 April
A

`1`

B

`0`

C

`2`

D

`-1`

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