Q: What is the solution?
Solve 31*j - 41 + 72 = 0 for j.

A: -1

Q: What is the solution?
Solve 18*b - 22 + 94 = 0 for b.

A: -4

Q: What is the solution?
Solve -311 = 490*u - 4231 for u.

A:
8