Solve 76*o = -493 - 6879 for o.
Solve this plz.

A: -97

Solve 393 - 35 + 414 = 19*n - 273 for n.
Solve this plz.

A: 55

Solve 32*f - 977*f + 13885 = 697*f - 69857 for f.
Solve this plz.

A:
51