Question: What is the solution?

Solve 0 = -30*u - 91 + 241 for u.

Answer: 5

Question: What is the solution?

Solve 11*s = -6891 + 6968 for s.

Answer: 7

Question: What is the solution?

Solve 0 = 478*l + 121313 - 87853 for l.

Answer: -70

Question: What is the solution?

Solve 0 = 134*f - 133 + 3081 for f.

Answer:
-22