Question: What is the solution?

Solve -87 = -6*n - 23*n for n.

Answer: 3

Question: What is the solution?

Solve 23*u + 15 = 18*u for u.

Answer: -3

Question: What is the solution?

Solve -59*g - 3963 = -33*g + 113*g + 14385 for g.

Answer: -132

Question: What is the solution?

Solve -131*x = 1337*x - 121*x - 17511 for x.

Answer:
13