Solve -29*f = -23*f + 42 for f.
Solve this plz.

A: -7

Solve -284*q + 43260 = 310*q + 580*q + 62*q for q.
Solve this plz.

A: 35

Solve 15234*f - 160 = 15214*f for f.
Solve this plz.

A:
8