Question: What is the solution?

Solve 42*o + 72 = 198 for o.

Answer: 3

Question: What is the solution?

Solve 0 = -2143*q - 2668*q + 565*q + 220792 for q.

Answer: 52

Question: What is the solution?

Solve -2988295*f + 14850 = -2988097*f for f.

Answer: 75

Question: What is the solution?

Solve -25*d + 182 = d for d.

Answer:
7