| Overload | Description | 
|---|---|
| Subtraction(Debt,Debt) | Substract y to x. | 
| Subtraction(Debt,TimeSpan) | Substract debt to timeSpan and returns the result in a Debt value. | 
| Subtraction(TimeSpan,Debt) | Substract timeSpan to debt and returns the result in a Debt value. | 
| Subtraction(Nullable<Debt>,Debt) | Substract x to y. If x is null, returns null. | 
| Subtraction(Debt,Nullable<Debt>) | Substract x to y. If y is null, returns null. | 
