Question: What is the solution?

Solve -3*a - 25 + 7 = 0 for a.

Answer: -6

Question: What is the solution?

Solve 30922*b + 1352 = 30870*b for b.

Answer: -26

Question: What is the solution?

Solve -510 - 656 = -106*n - 0 for n.

Answer: 11

Question: What is the solution?

Solve -294 = 94*u - 1046 for u.

Answer:
8