Q: What is the solution?
Solve -37*d + 14*d = 138 for d.

A: -6

Q: What is the solution?
Solve 133507*b = 133340*b + 6680 for b.

A: 40

Q: What is the solution?
Solve 0 = 17*f + 51 + 51 for f.

A:
-6