Definition:Heap Problem

Definition
A heap problem is one where:


 * an unknown $x$ is established
 * $x$ is expressed as the sum of one or more fractions of $x$ and one or more other whole number.

The object is to find $x$.

Also known as
In the such problems were called aha problems.

In the Middle Ages, problems of this form were often called God greet you problems, as they were usually couched in the form of a bunch of strangers meeting on the road.