Question: What is the solution?

Solve -80*i = -61*i + 171 for i.

Answer: -9

Question: What is the solution?

Solve 413 - 2082 = 77*q + 872 for q.

Answer: -33

Question: What is the solution?

Solve 227*l - 72*l + 594 = -142*l for l.

Answer: -2

Question: What is the solution?

Solve -219*u - 213*u + 4724 + 1633 = -3579 for u.

Answer:
23