Q: Solve:
Solve 0 = 16*c - 11*c + 10 for c.

A: -2

Q: Solve:
Solve -32*r = 48*r - 400 for r.

A: 5

Q: Solve:
Solve 5625*u - 8317 - 94303 + 2380 = 613*u for u.

A:
20