If x belongs to the set of residues modulo 4 and `6x - 3 -= -1` (mod 4), then find x.

If x belongs to the set of residues modulo 6 and 5 + x -= 3 (mod 6), then find x.

If x belongs to the set of residues modulo 4 and 2 + x -= 5 (mod 4), then x = __________.

If x belongs to the set of residues modulo 6 and 3 + x -= 2 (mod 6), then x = ________.

If 6x -= 5 (mod 7), then find x.

If 5x = 3(mod 7) then find x

If x belongs to the set of residues modulo 10, then the common solution of 5 + x -= 0 (mod 3) and 6 + x -= 0 (mod 5) is ________.

If x - 4 -= 8 (mod 5), then x is __________.

Find x if 10^(4) -= x (mod 23)

Solve for x, if 5x -= 0 (mod 4).

Find the least positive value of x such that 67+x-=1 (mod4)