Accuracy Check Please: (1/x - 1/b)/(1/xb + 1/2)

Please read my sugestions about notation!
We do not know what the problem actually states.
You need to redo the posting.
 
I keep doing your problem and coming up with a different answer than what you had. I came up with
2(b-x)
--------
2+xb
I don't know if the answer you have is wrong or if mine is. If I have the wrong answer I am not the person to help you, but here were my steps:
First get a common denominator for 1/x - 1/b which would be b/xb- x/xb which equals b-x/xb

Then do the bottom of the equation 1/xb+1/2 becomes 2/xb+xb/2xb which equals
2+xb/2xb

Then you dived them by switching the second fraction and multipy it by the fist
b-x/xb mutiplyed by 2xb/2+xb


before you mutilpy simplify by crossing out the "xb" in both equations then you have
b-x multiplied by 2/2+xb

ending up with
2(b-x)
-------
2+xb
I could be wrong, but that is my answer!
 
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