Question: What is the solution?

Solve 38 - 82 = 11*a for a.

Answer: -4

Question: What is the solution?

Solve -43 = 7*c - 22 for c.

Answer: -3

Question: What is the solution?

Solve 0 = -42*u + 272398 - 271558 for u.

Answer: 20

Question: What is the solution?

Solve -103*m - 660*m - 77682 = 414*m for m.

Answer:
-66