Q: What is the solution?
Solve 0 = -13*z - 39*z + 146 + 10 for z.

A: 3

Q: What is the solution?
Solve 204 - 373 = -73*d + 488 for d.

A: 9

Q: What is the solution?
Solve 135955*b - 28 = 135948*b for b.

A:
4