Solve 283*h = 322*h - 156 for h.
Solve this plz.

A: 4

Solve -8*f + 677 - 693 = 0 for f.
Solve this plz.

A: -2

Solve 169*k + 377 - 572 = 1157 for k.
Solve this plz.

A:
8