Q: Solve:
Solve 0 = -19*d - 191*d - 4047 + 1107 for d.

A: -14

Q: Solve:
Solve 13*i + 1353 = -39*i - 51 for i.

A: -27

Q: Solve:
Solve 493*b - 976*b - 333913 = -221*b + 4441*b for b.

A:
-71