So if I'm given a linear congruence and asked to find all the least positive residues mod m and if I get a negative value for my x should do I just using modular properties to get it to the least positive and go from there?
So if I have -7 as one solution and it's mod 4 do I use the fact that 1 mod 4 is equivalent and then do the whole x + 4/d for 0, 1, 2, up to d-1 to get the least positive residues?