Solve 0 = 63*d - 33800 + 34241 for d.
Solve this plz.

A: -7

Solve -1440*l + 4323*l = -135501 for l.
Solve this plz.

A: -47

Solve -19*r - 868 = -621 for r.
Solve this plz.

A:
-13