Question: What is the solution?

Solve 2475 + 6229 = -512*q for q.

Answer: -17

Question: What is the solution?

Solve -9 = -16*a + 7*a for a.

Answer: 1

Question: What is the solution?

Solve -17*b + 22*b = -20 for b.

Answer: -4

Question: What is the solution?

Solve 1133 = b + 1137 for b.

Answer:
-4