Posted by **shelly** on Saturday, May 23, 2009 at 10:25pm.

Needing help with these problems lost, subtract. simplify if possible 3/x-9 - 3/ 9-x, divide and simpliify 6/t divide 18/t, add. simplify is possible 5/z-8 + 12/(z-18)^2

- math -
**PsyDAG**, Sunday, May 24, 2009 at 12:22pm
I am not sure if I have the problems right. For what I think is the first question:

3/(x-9) - 3/(9-x)

However, (9-x) = -1(x-9)

Therefore 3/(x-9) - 3/(9-x) = 3/(x-9) + 3/(x-9) =

6/(x-9)

I hope this helps. If not, please repost, clarifying your questions. Thanks for asking.

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