Exercise algebra.manipulation.rational.simplify

Description
simplify a rational expression (with a variable in a divisor)

(x-4)/((x+5)*(x-4))-(x+5)*3/((x+5)*(x-4))

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Path 1

path	[0, 0, 0, 0, 1]
steps	5
major rules	1
active labels	simplifyrationalexpression writeasdivision