Q: Solve -d - 6*d = 7 for d.

A: -1

Q: Solve -482*q = -483*q for q.

A: 0

Q: Solve 509*z = 85*z + 16130 + 7190 for z.

A: 55

Q: Solve 131*w = 125*w for w.

A:
0