Question:
Solve -18*f = 6 + 12 for f..

Answer:
-1

Question:
Solve -126*p + 3067 - 186 + 773 = 0 for p..

Answer:
29

Question:
Solve 518*r - 1358409 + 1340279 = 0 for r..

Answer:
35

Question:
Solve -626 = -475*v + 185*v + 534 for v..

Answer:
4