4x mod 5 = 3x-1 mod 5
Should I do:
5|(4x-(3x-1))
or
5|((3x-1)-4x)?
according to the theorem, it should be: if a mod 5 = b mod 5
then 5|(a-b), but shouldn't we take the greatest number?
4x mod 5 = 3x-1 mod 5
Should I do:
5|(4x-(3x-1))
or
5|((3x-1)-4x)?
according to the theorem, it should be: if a mod 5 = b mod 5
then 5|(a-b), but shouldn't we take the greatest number?