Q: Solve:
Solve 22*r - 317 = -449 for r.

A: -6

Q: Solve:
Solve 282*c = -578*c + 1215*c - 18460 for c.

A: 52

Q: Solve:
Solve 2*v - 99*v + 7626 = 5*v + 84*v for v.

A:
41