Question: What is the solution?

Solve 245*a + 317 = 7499 - 322 for a.

Answer: 28

Question: What is the solution?

Solve 3509*k - 3507*k + 2 = 0 for k.

Answer: -1

Question: What is the solution?

Solve 178*d - 5047 + 269 - 4153 = -1277 for d.

Answer: 43

Question: What is the solution?

Solve 0 = -1565*p - 2483 + 10304 + 9394 for p.

Answer:
11