Q: What is the solution?
Solve 12*a - 93 = -117 + 72 for a.

A: 4

Q: What is the solution?
Solve 21*m - 57*m + 17*m + 13*m = -360 for m.

A: 60

Q: What is the solution?
Solve -462*j - 540 = -432*j for j.

A:
-18