Q: Solve 76*d - 40 = 81*d for d.

A: -8

Q: Solve 6147310*u - 6147189*u + 5203 = 0 for u.

A: -43

Q: Solve -5*c + 11*c - 18 = 0 for c.

A: 3

Q: Solve 177 = -3639*l + 3622*l + 41 for l.

A:
-8