Q: What is the solution?
Solve 0 = 78*d - 73*d - 110 for d.

A: 22

Q: What is the solution?
Solve -419*r = 669 + 1845 for r.

A: -6

Q: What is the solution?
Solve 208*i + 520*i - 38350 = 13959 - 14453 for i.

A:
52