Q: Solve:
Solve 0 = -s - 29 + 27 for s.

A: -2

Q: Solve:
Solve -213156*l + 213345*l - 17766 = 0 for l.

A: 94

Q: Solve:
Solve -8*p + 19049 = 47*p + 16244 for p.

A:
51