Question: What is the solution?

Solve 385*n = 398*n for n.

Answer: 0

Question: What is the solution?

Solve 103*z = 251*z + 1924 for z.

Answer: -13

Question: What is the solution?

Solve 4*h - 116 = -92 for h.

Answer: 6

Question: What is the solution?

Solve 0 = -51*u - 71*u + 28*u + 1128 for u.

Answer:
12