Q: What is the solution?
Solve -253*f = 108*f + 430*f - 15638 - 9674 for f.

A: 32

Q: What is the solution?
Solve 3226 + 3001 = -141*l + 728 for l.

A: -39

Q: What is the solution?
Solve -98*p = -15*p + 31*p - 21*p for p.

A:
0