Solve -15 = -38*f + 23 for f.
Solve this plz.

A: 1

Solve 245*w + 17010 = -7*w + 1386*w for w.
Solve this plz.

A: 15

Solve 750 = -283*c + 8353 - 1094 for c.
Solve this plz.

A:
23