Solve -115957*i + 115884*i - 6570 = 0 for i.
Solve this plz.

A: -90

Solve 0 = -585*f - 474*f + 153*f + 22650 for f.
Solve this plz.

A: 25

Solve 855*q - 923 = -840*q - 617*q + 3701 for q.
Solve this plz.

A:
2