Question:
Solve 632*n - 269 = -509 - 392 for n..

Answer:
-1

Question:
Solve 4*f + 31 = 11 for f..

Answer:
-5

Question:
Solve 387 - 2982 - 787 = -178*o for o..

Answer:
19

Question:
Solve -4 = -4*b - 24 for b..

Answer:
-5