Question:
Solve 0 = 1781*s - 1606*s - 2275 for s..

Answer:
13

Question:
Solve 3860 = -1654*b - 47414 for b..

Answer:
-31

Question:
Solve 21*n + 7 + 14 = 0 for n..

Answer:
-1

Question:
Solve 53*s - 1293 = -27*s - 13 for s..

Answer:
16