Question:
Solve 22*c - 56*c - 26292 = 469*c - 2651 for c..

Answer:
-47

Question:
Solve 0 = -1905*u - 1233*u - 17986*u + 2302516 for u..

Answer:
109

Question:
Solve 237*f = 224*f - 130 for f..

Answer:
-10

Question:
Solve -3*s + 0 = -3 for s..

Answer:
1