Question: What is the solution?

Solve -1907*c = -1922*c - 285 for c.

Answer: -19

Question: What is the solution?

Solve 4827 = -810*q + 2082 - 2115 for q.

Answer: -6

Question: What is the solution?

Solve -25625 = -62*o - 26741 for o.

Answer: -18

Question: What is the solution?

Solve 0 = -798*c - 129*c + 20*c + 68314 - 289 for c.

Answer:
75