Question: What is the solution?

Solve 277*u = 283*u for u.

Answer: 0

Question: What is the solution?

Solve 16*y + 31*y = -y + 4992 for y.

Answer: 104

Question: What is the solution?

Solve -258*w + 520*w + 2358 = 0 for w.

Answer: -9

Question: What is the solution?

Solve -25*y = -93*y - 70*y - 4278 for y.

Answer:
-31