Solve 1220*q + 31 = 1209*q - 35 for q.
Solve this plz.

A: -6

Solve 10*t + 58126 - 58166 = 0 for t.
Solve this plz.

A: 4

Solve 28737*f = -28852*f + 57740*f + 7550 for f.
Solve this plz.

A:
-50