Q: Solve 28 - 83 = 11*f for f.

A: -5
Q: Solve:
Solve -142*x = 239*x - 111*x + 50*x + 11840 for x.

A: -37
Question: What is the solution?

Solve 58*f - 47*f - 43*f - 992 = 0 for f.

Answer: -31
Problem: Math Problem
Solve 19 - 54 = 35*d for d.

A: -1
Question:
Solve 499*u - 189*u + 6820 = 0 for u..

Answer:
-22
Question: What is the solution?

Solve 31*o - 39 = 44*o for o.

Answer:
-3