Q: What is the solution?
Solve 0 = -20*t - 140 - 0 for t.

A: -7

Q: What is the solution?
Solve -28933 - 32772 = -5654*c - 5165 for c.

A: 10

Q: What is the solution?
Solve -568*d - 1710 = -758*d for d.

A:
9