Q: Solve 171159*d - 172279*d - 72394 = -17514 for d.

A: -49

Q: Solve q = 3*q for q.

A: 0

Q: Solve 94*r = -540 + 1840 + 674 for r.

A: 21

Q: Solve 5460 = 866*w - 1286*w for w.

A:
-13