Q: Solve:
Solve -2*s + 4 = -0 for s.

A: 2

Q: Solve:
Solve 0 = 19*n - 8*n - 55 for n.

A: 5

Q: Solve:
Solve 229*u = -163*u - 382*u + 215*u + 14534 for u.

A:
26