In LaTeX, equations are numbered robotically by default. Nevertheless, there could also be instances whenever you need to reset the equation numbering, for instance, if you end up beginning a brand new part or chapter. To do that, you need to use the setcounter{equation}{0} command. This command will reset the equation counter to 0, in order that the subsequent equation shall be numbered 1.
Right here is an instance of the way to use the setcounter{equation}{0} command: