Q: Solve:
Solve -242*k + 105*k + 3460 = 209*k for k.

A: 10

Q: Solve:
Solve 227*u - 2356 = -540 for u.

A: 8

Q: Solve:
Solve -7487 = -859*a - 13806 - 13438 for a.

A:
-23