Election precincts composed partially of unincorporated territory and partially of all or any part of a city may be established within a single county in any manner which is not contrary to section 49.3 . An agreement mutually satisfactory to the board of supervisors or the temporary county redistricting commission and the city council of the city involved shall be adopted and a copy of the agreement shall be submitted to the state commissioner as part of the certification of precinct boundaries required by section 49.7 . [C97, §1090; S13, §1090; C24, 27, 31, 35, 39, § 724; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §49.6 ] 94 Acts, ch 1179, §9 Referred to in §49.5 , 49.8 , 273.8 , 331.210A , 331.383