Q: Solve 0 = -3309*i + 3305*i + 8 for i.

A: 2

Q: Solve -1728*d = -622*d + 1111*d - 11085 for d.

A: 5

Q: Solve 35*r = 16*r - 38 for r.

A: -2

Q: Solve -7 = -y - 8 for y.

A:
-1