Question: What is the solution?

Solve 0 = -13*c + 157*c - 602 + 1898 for c.

Answer: -9

Question: What is the solution?

Solve -3 + 12 = -3*p for p.

Answer: -3

Question: What is the solution?

Solve 0 = -52*n - 724 + 152 for n.

Answer: -11

Question: What is the solution?

Solve 3537 + 1567 = -79*q + 1707 for q.

Answer:
-43