DragginMath: Superposition

Some solutions require you to add one equation to another.

For example, enter a=b; c=d. Drag = in the first equation onto the = in the second equation. The result is a=b; c+a=d+b. This works in either Blue Mode or Green Mode, but not Red or Magenta or Purple Mode.

The dragged node must be =, but the target node can be any relation.