Question: What is the solution?

Solve -2640 = -2*t - 2644 for t.

Answer: -2

Question: What is the solution?

Solve -330*c - 845*c = 17625 for c.

Answer: -15

Question: What is the solution?

Solve -270544 = -155*l - 3501*l for l.

Answer: 74

Question: What is the solution?

Solve -115*f - 429 = -631 - 2213 for f.

Answer:
21