Question: What is the solution?

Solve 0 = -2408*r + 2444*r - 1512 for r.

Answer: 42

Question: What is the solution?

Solve -4*s + 2727557 - 2727625 = 0 for s.

Answer: -17

Question: What is the solution?

Solve 14*n - 4 = 12*n for n.

Answer: 2

Question: What is the solution?

Solve -4*b + 96 = -28*b for b.

Answer:
-4