Q: What is the solution?
Solve 12*z = -433 + 457 for z.

A: 2

Q: What is the solution?
Solve -2*u = 27*u + 305 - 73 for u.

A: -8

Q: What is the solution?
Solve -1418*a - 10179 + 280 = 1655 + 2626 for a.

A:
-10