Q: What is the solution?
Solve 245*a = 317*a - 216 for a.

A: 3

Q: What is the solution?
Solve 5*b + 15*b = 60 for b.

A: 3

Q: What is the solution?
Solve -124*m + 9892 + 4931 = 7*m + 52*m for m.

A:
81