Question: What is the solution?

Solve 56*h + 15*h + 1683 = 17*h + 21*h for h.

Answer: -51

Question: What is the solution?

Solve -220*j - 902593 = -891593 for j.

Answer: -50

Question: What is the solution?

Solve -131465*l + 3105 = -131580*l for l.

Answer: -27

Question: What is the solution?

Solve -63591*q + 63522*q - 2001 = 0 for q.

Answer:
-29