Q: Solve 640*f + 1432 + 14515 = 435 - 4968 for f.

A: -32

Q: Solve 20*x - 5 = 15*x for x.

A: 1

Q: Solve 7*f = 13 + 1 for f.

A: 2

Q: Solve 0 = -62*x - 1963 + 7667 for x.

A:
92