Question:
Solve -61 = -5*f - 46 for f..

Answer:
3

Question:
Solve 665*g + 5062 = -16393 + 2835 for g..

Answer:
-28

Question:
Solve -18*w + 6*w - 99 = -w for w..

Answer:
-9

Question:
Solve -13*q + 218 = 309 for q..

Answer:
-7