If A = [{:(0,1,2),(1,2,3),(3,1,1):}] and...

If `A = [{:(0,1,2),(1,2,3),(3,1,1):}] and ` inverse of A is `(1)/(2) [{:(1,-1,1),(-8,6, -2),(x, -3, 1):}]` then x = _______________.

A

5

B

3

C

2

D

4

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