Q: What is the solution?
Solve -96 = -21*o - 12 for o.

A: 4

Q: What is the solution?
Solve -3911*u + 1134*u - 1545 + 139865 = 681*u for u.

A: 40

Q: What is the solution?
Solve 27*x = -5784 + 6783 for x.

A:
37