Q: Solve:
Solve -23227 - 2880 - 3461 = -388*u - 284*u for u.

A: 44

Q: Solve:
Solve -6960*b + 1075 = -6917*b for b.

A: 25

Q: Solve:
Solve -1356 - 779 = -61*s for s.

A:
35