SOLUTION: Subtract, Simplify if possible. I have tried this problem but I am not sure if this is right: (7-z/z-5) - (7z-8/5-z) I ended up with the answer (8z-1/5-z) But I don't t

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Subtract, Simplify if possible. I have tried this problem but I am not sure if this is right: (7-z/z-5) - (7z-8/5-z) I ended up with the answer (8z-1/5-z) But I don't t      Log On


   



Question 387338: Subtract, Simplify if possible.
I have tried this problem but I am not sure if this is right:
(7-z/z-5) - (7z-8/5-z)
I ended up with the answer
(8z-1/5-z)
But I don't think that is right because the denominators are different in both equations.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(7-z/z-5) - (7z-8/5-z)
----
Re-write:
(7-z/z-5) + (7z-8/z-5)
---
Now the denomiators are the same:
---
= [7-z+7z-8]/(z-5)
---
= [6z-1]/[z-5]
================
Cheers,
Stan H.