Question: What is the solution?

Solve 14737*o - 14723*o - 154 = 0 for o.

Answer: 11

Question: What is the solution?

Solve 3703*z + 216 = 3727*z for z.

Answer: 9

Question: What is the solution?

Solve 41*b + 191 = 126 - 263 for b.

Answer: -8

Question: What is the solution?

Solve 0 = -r + 3 for r.

Answer:
3