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Select and write the correct answer from the given alternatives in each of the following:The system of equations ` x+y+z=-2,2x-y+3z=5,x-2y-z+1=0` written in matrix from is

A

`[[x],[y],[z]][[1,1,1],[2,-1,3],[1,-2,-1]]=[[2],[5],[-1]]`

B

` [[1,1,1],[2,-1,3],[1,-2,-1]][[x],[y],[z]]=[[-2],[-5],[1]]`

C

` [[1,1,1],[2,-1,3],[1,-2,-1]][[x],[y],[z]]=[[2],[5],[-1]]`

D

None of these

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