Q: What is the solution?
Solve 388410*g - 388280*g = 5200 for g.

A: 40

Q: What is the solution?
Solve 85238*k - 85221*k + 177 = 41 for k.

A: -8

Q: What is the solution?
Solve -10*z - 11*z = 21 for z.

A:
-1