Question:
Solve 9381 = -s + 9388 for s..

Answer:
7

Question:
Solve 2655*q - 2664*q + 81 = 0 for q..

Answer:
9

Question:
Solve -41*f + 33 = -52*f for f..

Answer:
-3

Question:
Solve 58*p = -2766 + 1664 for p..

Answer:
-19