Question: What is the solution?

Solve -35 = -40*b + 45 for b.

Answer: 2

Question: What is the solution?

Solve 2612*o + 270351 + 10566 = -8341 - 47690 for o.

Answer: -129

Question: What is the solution?

Solve -2*i - 121 + 127 = 0 for i.

Answer: 3

Question: What is the solution?

Solve -130*u - 109 = 390 + 151 for u.

Answer:
-5