Solve -92*s + 478 - 83 = -249 for s.
Solve this plz.

A: 7

Solve -1181*u + 4161*u + 1940*u + 174534 = 31854 for u.
Solve this plz.

A: -29

Solve 174 - 18 = -18*s - 42 for s.
Solve this plz.

A:
-11