Q: What is the solution?
Solve -82*u + 307*u + 4524 = -167*u + 12364 for u.

A: 20

Q: What is the solution?
Solve -11276 + 12609 = 43*k for k.

A: 31

Q: What is the solution?
Solve -91505*o = -91511*o + 17 + 25 for o.

A:
7