Balancing Equations
 

 




                                                                     Add:                Remove:                Replicate:                     Split:
     Right  ...                                                                             Left    ...                                                                

                                                                                                                                                                                                                    level 1

                                                                                                                         level 2

                                                                                                                         level 3

                                                                                                                         level 4

                                                                                                                         

                                                                      =