Q: Solve:
Solve -11*d + 6*d - 5 = 0 for d.

A: -1

Q: Solve:
Solve -34*a - 72 = -26*a for a.

A: -9

Q: Solve:
Solve -157*l + 25*l - 145*l - 831 = 0 for l.

A:
-3