Assuming that you meant "(3/2)x+5+5/x-5," group together the x terms and then group together the constant terms:
(3/2)x +5 - 5 + 5/x
This becomes (3/2)x + 5/x. You can leave your answer in this form, or you could sum up the 2 terms into one using the LCD 2x.
Then your (3/2)x + 5/x becomes (2x)(3/2)x + (2x)(5/x)
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2x
or 3x^2 + 10
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2x