Q: What is the solution?
Solve 8 = -4*v - 0*v for v.

A: -2

Q: What is the solution?
Solve 1881 = -57*r - 104*r + 218*r for r.

A: 33

Q: What is the solution?
Solve -12 = 18*v - 10*v + 12 for v.

A:
-3