Q: What is the solution?
Solve 521*m - 255*m = 2394 for m.

A: 9

Q: What is the solution?
Solve 769*a = 1568*a - 748*a for a.

A: 0

Q: What is the solution?
Solve 1182 = 257*b + 22139 + 5000 for b.

A:
-101