Question: What is the solution?

Solve 289*b + 286 = 306*b - 3 for b.

Answer: 17

Question: What is the solution?

Solve -571*b - 61820 = 1215*b + 1305*b for b.

Answer: -20

Question: What is the solution?

Solve 1024*b - 9020 = 1889*b - 1029*b for b.

Answer: 55

Question: What is the solution?

Solve 73*d - 2181 = -1378 for d.

Answer:
11