<PRE><B>Question 1054922</B>
the expression is:


(-9a-5b/9a) + (6a+8b/3a ) -4 


remove the parentheses to get:


-9a - 5b/9a + 6a + 8b/3a - 4


-9a + 6a is equal to -3a.


-5b/9a + 8b/3a is equal to -5b/9a + 24b/9a which is equal to 19b/9a.


you final expression should be -3a + 19b/3a - 4


you got 9a + 19b/9a - 4


not sure what you did to get 9a.


otherwise it looks like you did ok.
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