Q: Solve 456 - 51 = 50*w + 31*w for w.

A: 5

Q: Solve -10*s + 8*s = -15*s - 260 for s.

A: -20

Q: Solve -2731 = u - 2723 for u.

A: -8

Q: Solve -83*z = -75*z + 16 for z.

A:
-2