Correct Answer: Option B
or,ax-1/bx-1=bx-3/ax-3 [ (a/b)2=a2 /b2]
or,bx-3 .bx-1=a x-1.ax-3
or,bx-3+x-1=ax-1+x-3
or,b2x-4=a2x-4
or,(b/a)2x-4=1
or,(b/a)2x-4 =(b/a)0 [a0 =1]
or,2x-4=0
or,2x=4
or,x=(4/2)
=2
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