Question: What is the solution?

Solve -431*n - 33402 = 261*n + 248*n - 6142 for n.

Answer: -29

Question: What is the solution?

Solve -4365*z + 3587*z = -32676 for z.

Answer: 42

Question: What is the solution?

Solve -18953 - 16834 = 796*v - 7927 for v.

Answer: -35

Question: What is the solution?

Solve -28*a + 9*a + 85 = 332 for a.

Answer:
-13