Q: What is the solution?
Solve -228548*z = -228557*z + 135 for z.

A: 15

Q: What is the solution?
Solve -16*w + 11*w = 17*w for w.

A: 0

Q: What is the solution?
Solve -490*a = -478*a + 36 for a.

A:
-3