Q: Solve:
Solve -81*b - 38 - 331 = 198 for b.

A: -7

Q: Solve:
Solve 126423*z = 126430*z - 154 for z.

A: 22

Q: Solve:
Solve 42*g + 36*g + 6 = 77*g for g.

A:
-6