When, in the judgment of any city or town council, expressed by a resolution that is passed and adopted, it is in the best interest of the city or town and the inhabitants of any contiguous platted tracts or parcels of land or unplatted land for which a certificate of survey has been filed that the boundaries of the city or town be extended to include the platted tracts or parcels of land or unplatted land within the corporate limits of the city or town, the city or town clerk shall:
(1) immediately notify, in writing, all registered voters in the territory to be embraced; and
(2) publish a notice as provided in 7-1-4127.