Question: What is the solution?

Solve -10591 = 402*s - 2551 for s.

Answer: -20

Question: What is the solution?

Solve -61*b + 273 = -93 for b.

Answer: 6

Question: What is the solution?

Solve -39*p = -99*p - 360 for p.

Answer: -6

Question: What is the solution?

Solve 243*m + 80760 + 2998 + 65142 = -1246*m for m.

Answer:
-100