Q: Solve:
Solve 845 + 709 + 1470 = -84*l for l.

A: -36

Q: Solve:
Solve 15*d + 118 - 29 + 61 = 0 for d.

A: -10

Q: Solve:
Solve -142*b + 680 - 4241 = 1045*b for b.

A:
-3