Interactive demonstration
Move a term across the equals sign
Drag a term to the other side, or tap a term and then tap the opposite side. Its sign changes, but every solution guide remains fixed.
Current equation
The two sides become two curves
Left side · blue curve Move selected term here
Right side · rose curve Move selected term here
Graphical view
Same solution lines, different curves
Dashed vertical lines mark the x-coordinates of every intersection.