Q: What is the solution?
Solve 2620 = -63*i + 80*i - 253*i - 288*i for i.

A: -5

Q: What is the solution?
Solve -65*c = 29*c + 49*c - 286 for c.

A: 2

Q: What is the solution?
Solve 3071*u - 103880 = 342*u + 132*u for u.

A:
40