Q: What is the solution?
Solve 33*s - s + 840 = -38*s for s.

A: -12

Q: What is the solution?
Solve -5693*v + 1168*v - 142928 - 163022 = -61600 for v.

A: -54

Q: What is the solution?
Solve 0 = 81*r + 941 + 1894 for r.

A:
-35