Q: Solve:
Solve -415*d + 899 = 219*d + 6605 for d.

A: -9

Q: Solve:
Solve 5348*l + 5868 = -5435*l + 10946*l for l.

A: 36

Q: Solve:
Solve -950*t + 8384 = -6816 for t.

A:
16