Q: Solve:
Solve -43*d + 25*d + 3564 = 10*d - 64*d for d.

A: -99

Q: Solve:
Solve 177*l - 194*l = -102 for l.

A: 6

Q: Solve:
Solve 16*r + 880*r = -1298*r + 8776 for r.

A:
4