Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Firsts
Rule algebra.equations.rational.rational-plus Location [] Term "Just (TCon arith1.divide [TCon arith1.minus [TCon arith1.times [TNum 21,TVar \"x\"],TNum 5],TCon arith1.times [TNum 7,TVar \"x\"]])" Focus "Just (TCon arith1.divide [TCon arith1.minus [TCon arith1.times [TNum 21,TVar \"x\"],TNum 5],TCon arith1.times [TNum 7,TVar \"x\"]])" Environment