Q: What is the solution?
Solve 6*v - 12 = -24 for v.

A: -2

Q: What is the solution?
Solve 315*v + 245*v = -480*v - 109*v + 58599 for v.

A: 51

Q: What is the solution?
Solve -9 + 6 = 3*i for i.

A:
-1