Question: What is the solution?

Solve 780 = -620*f + 464*f for f.

Answer: -5

Question: What is the solution?

Solve -17432*d - 20184 = -18273*d for d.

Answer: 24

Question: What is the solution?

Solve 219 = -58*c + 799 for c.

Answer: 10

Question: What is the solution?

Solve 44*o + 75*o + 3458 = -14*o for o.

Answer:
-26