Q: Solve:
Solve 4 = -48*f + 46*f for f.

A: -2

Q: Solve:
Solve 0 = 89*a - 82*a - 35 for a.

A: 5

Q: Solve:
Solve 24*p + 215*p = 62*p - 171*p - 13920 for p.

A:
-40