Q: Solve:
Solve -87 = -3*k - 99 for k.

A: -4

Q: Solve:
Solve -597*q - 9778 = 7894 - 4382 + 4620 for q.

A: -30

Q: Solve:
Solve -340*d + 54883 = 433*d for d.

A:
71