Question: What is the solution?

Solve 42*m + 209 + 137 = -242 for m.

Answer: -14

Question: What is the solution?

Solve 221 = -169*l + 152*l for l.

Answer: -13

Question: What is the solution?

Solve -3978 = 53575*t - 53614*t for t.

Answer: 102

Question: What is the solution?

Solve 0 = 1446*h - 9017 + 57826 + 7585 for h.

Answer:
-39