Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(4*x+8-(x+3)*6)/((x+3)*(x+2))
⇒ algebra.equations.linear.distr-times(4*x+8-6*x-18)/((x+3)*(x+2))
⇒ algebra.equations.linear.merge(-2*x-10)/((x+3)*(x+2))