Q: Solve:
Solve 0 = -1239*y + 1251*y - 300 for y.

A: 25

Q: Solve:
Solve 286*u + 304*u = -309*u + 937*u - 1406 for u.

A: 37

Q: Solve:
Solve 860*k = 875*k - 95 - 130 for k.

A:
15