Question: What is the solution?

Solve -234*n + 451*n + 299 = 230*n for n.

Answer: 23

Question: What is the solution?

Solve 0 = 9*n - 562*n + 3871 for n.

Answer: 7

Question: What is the solution?

Solve -5*f - 3 = -28 for f.

Answer: 5

Question: What is the solution?

Solve 0*k = -6*k - 53 + 11 for k.

Answer:
-7