Question: What is the solution?

Solve -15*f - 16 = -46 for f.

Answer: 2

Question: What is the solution?

Solve 42 = 3*m + 39 for m.

Answer: 1

Question: What is the solution?

Solve 0 = -602*h - 32438 - 10906 for h.

Answer: -72

Question: What is the solution?

Solve -254*u + 733 + 2091 = -141*u - 466*u for u.

Answer:
-8