SOLUTION: please help 1/z+9 + 9/5z

Question 421531: please help
1/z+9 + 9/5z
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1/(z+9) + 9/5z
------
lcd = 5z(z+9)
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Rewrite each fraction with the lcd as its denominator:
[5z/lcd] + 9(z+9)/lcd
---
Combine over the lcd to get:
[5z + 9z+81]/lcd
----
Simplify:
= [14z+81]/[5z(z+9)]
=========================
cheers,
Stan H.
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