Question: What is the solution?

Solve 257*w + 1480 - 2799 - 2279 = 0 for w.

Answer: 14

Question: What is the solution?

Solve 17892*f + 127512 = 16506*f for f.

Answer: -92

Question: What is the solution?

Solve -72*f + 90*f - 148 = 122 for f.

Answer: 15

Question: What is the solution?

Solve -61*s + 60*s = -295*s - 1470 for s.

Answer:
-5