Question: What is the solution?

Solve -528*v + 96*v + 8642 = -233*v - 5089 for v.

Answer: 69

Question: What is the solution?

Solve 35*c - 8978 + 9013 = 0 for c.

Answer: -1

Question: What is the solution?

Solve 0 = f + 125 - 126 for f.

Answer: 1

Question: What is the solution?

Solve 3*w + 40 = 46 for w.

Answer:
2