Q: What is the solution?
Solve 321 = 447*k - 126*k for k.

A: 1

Q: What is the solution?
Solve -2049 - 7479 = 834*m + 4650 for m.

A: -17

Q: What is the solution?
Solve 121*u - 1578 + 4482 = 0 for u.

A:
-24