Question: What is the solution?

Solve 0 = 28*p + 292 - 21 + 9 for p.

Answer: -10

Question: What is the solution?

Solve -5*m = 7*m - 10*m for m.

Answer: 0

Question: What is the solution?

Solve -707 - 1440 = -69*m + 956 - 136 for m.

Answer: 43

Question: What is the solution?

Solve 3941*n = 3950*n - 18 for n.

Answer:
2