Question: What is the solution?

Solve -5*y = -2*y + 12 for y.

Answer: -4

Question: What is the solution?

Solve 22200 = 684*q - 6528 for q.

Answer: 42

Question: What is the solution?

Solve -481*u = -281*u + 3482*u + 136234 for u.

Answer: -37

Question: What is the solution?

Solve 2*c - c = 5*c for c.

Answer:
0