Solve -763*t = -10085 - 3314 - 759 - 1865 for t.
Solve this plz.

A: 21

Solve -345*f = 2815*f + 4869*f + 614725 - 60724 for f.
Solve this plz.

A: -69

Solve 0 = 3*b - 50*b - 188 for b.
Solve this plz.

A:
-4