Q: What is the solution?
Solve -58*s + 1405 = 223*s for s.

A: 5

Q: What is the solution?
Solve 0 = 99*f - 170*f + 807 - 4927 - 140 for f.

A: -60

Q: What is the solution?
Solve 1117*i = -359*i + 81301 + 4751 - 4872 for i.

A:
55