Question: What is the solution?

Solve 0 = -17*a + 206 - 2 for a.

Answer: 12

Question: What is the solution?

Solve -180 = 733*f - 5311 - 3665 for f.

Answer: 12

Question: What is the solution?

Solve 2185*u + 10043 - 1605 + 38277 + 34130 = 0 for u.

Answer: -37

Question: What is the solution?

Solve 434*r - 203*r - 922*r = 475*r + 69960 for r.

Answer:
-60