Solve 11*r = 8*r + 3 for r.
Solve this plz.

A: 1

Solve 0 = 23*x - 2951 + 3020 for x.
Solve this plz.

A: -3

Solve -182*f - 152*f - 4395 = 334*f + 211*f for f.
Solve this plz.

A:
-5