Q: What is the solution?
Solve 299*i = 204*i - 1316 - 1439 for i.

A: -29

Q: What is the solution?
Solve 0 = -563*a + 194*a - 2217 - 1104 for a.

A: -9

Q: What is the solution?
Solve 12 = 4*d + 8*d for d.

A:
1