Q: What is the solution?
Solve -7*i - 20 = -27 for i.

A: 1

Q: What is the solution?
Solve -902382 = 7386*u - 274572 for u.

A: -85

Q: What is the solution?
Solve 150*d - 129*d - 367 + 242 = -188 for d.

A:
-3