Question:
Solve -77*r + 22716044 = 22719509 for r..

Answer:
-45

Question:
Solve -27739*c + 27764*c = -1100 for c..

Answer:
-44

Question:
Solve 5002 - 28483 = 3550*a + 12570 + 59799 for a..

Answer:
-27

Question:
Solve 11*f = 23*f - 48 for f..

Answer:
4