Question:
Solve 1137 = 20*b + 1417 for b..

Answer:
-14

Question:
Solve -37*p - 2*p = 273 for p..

Answer:
-7

Question:
Solve 0 = -10*o - 129 + 119 for o..

Answer:
-1

Question:
Solve 9*s - 39 + 21 = 0 for s..

Answer:
2