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Posted by on Friday, June 29, 2012 at 8:25am.

subtract:
7-z/z-5 - 4z-9/5-z

  • algebra1 - , Friday, June 29, 2012 at 10:30am

    I am sure you meant:

    (7-z)/(z-5) - (4z-9)/(5-z)

    = (7-z)/(z-5) + (4z-9)/(z-5)
    = (7-z + 4z-9)/(z-5)
    = (3z-2)/(z-5)

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