Q: What is the solution?
Solve 1220 = -41*c + 1589 for c.

A: 9

Q: What is the solution?
Solve 0 = -814*u + 156*u - 12502 for u.

A: -19

Q: What is the solution?
Solve -3421 = 29*i - 9451 + 4145 for i.

A:
65