WorksheetMinus[Divide[x,1],Divide[μ,x]]Sum[x,Negative[Divide[μ,x]]]EquationSymbolicSolveRequest[List[Equal[Minus[Divide[x,1],Divide[μ,x]],x]],List[x]]Solution[{x,ExpressionSetPoint[ExpressionWithCondition[0,Equal[μ,0]],True,ReservedReal]}]