Q: Solve 12739 + 22301 = 7280*x - 272*x for x.

A: 5

Q: Solve -190*g = -188*g for g.

A: 0

Q: Solve 99 - 101 = r for r.

A: -2

Q: Solve -1421*z - 458*z - 48*z = 853*z + 172360 for z.

A:
-62