Question: What is the solution?

Solve w - 5 + 6 = 0 for w.

Answer: -1

Question: What is the solution?

Solve 28*x - 8529 + 2070 - 24093 = -200*x for x.

Answer: 134

Question: What is the solution?

Solve 391 = -360*f + 383*f for f.

Answer: 17

Question: What is the solution?

Solve 6*n - 22 = 38 for n.

Answer:
10