Q: What is the solution?
Solve 0 = -664*r + 1046 - 5247 - 12399 for r.

A: -25

Q: What is the solution?
Solve -3196 = 90*v + 2418 + 2036 for v.

A: -85

Q: What is the solution?
Solve -611 = -237*g - 1202 - 1068 for g.

A:
-7