Q: What is the solution?
Solve 15*h = -0 + 30 for h.

A: 2

Q: What is the solution?
Solve o - 46 = -38 for o.

A: 8

Q: What is the solution?
Solve 0 = -422*u - 516*u - 100*u + 24912 for u.

A:
24