Q: Solve -13*b - 23 = 3 for b.

A: -2

Q: Solve -88*d - 7893 = -12*d + 89*d - 2778 for d.

A: -31

Q: Solve -205*r - 4*r - 4314 = -3269 for r.

A: -5

Q: Solve 0 = 12*w + 65 - 29 for w.

A:
-3