Q: Solve -5*u - 31 = -21 for u.

A: -2

Q: Solve 5*w - 20 = -10 for w.

A: 2

Q: Solve -27*x + 43 = -416 for x.

A: 17

Q: Solve -182 - 129 + 432 = -11*y for y.

A:
-11