Q: Solve 21572*d - 4095 = 21257*d for d.

A: 13

Q: Solve -3422 + 3446 = 2*u for u.

A: 12

Q: Solve -475*p - 15900 = 55*p for p.

A: -30

Q: Solve 2171*c + 3194*c + 114277 = 881*c + 558193 for c.

A:
99