Question:
Solve 0 = -56*f - 7949 + 7501 for f..

Answer:
-8

Question:
Solve 5105*s = -5614*s - 889677 for s..

Answer:
-83

Question:
Solve 6*x + 7 = 1 for x..

Answer:
-1

Question:
Solve -37*l + 294 - 220 = 0 for l..

Answer:
2