Solve -5*n + 6 = 16 for n.
Solve this plz.

A: -2

Solve -34*q + 37*q + 3 = 0 for q.
Solve this plz.

A: -1

Solve -643*u + 14040 + 1956 = -194*u - 5107 for u.
Solve this plz.

A:
47