Q: Solve:
Solve -55*i - 7*i - 558 = 0 for i.

A: -9

Q: Solve:
Solve -314643*l + 314671*l + 420 = 0 for l.

A: -15

Q: Solve:
Solve -25*d - 106 = -31 for d.

A:
-3