Question: What is the solution?

Solve -5*k - 235 = 31*k + 377 for k.

Answer: -17

Question: What is the solution?

Solve 3011 = -1015*u - 24731 - 4107 - 38186 for u.

Answer: -69

Question: What is the solution?

Solve -3400 + 70 = -107*f - 548 for f.

Answer: 26

Question: What is the solution?

Solve -9*i = -18 + 36 for i.

Answer:
-2