Question:
Solve 0 = 57*s + 341 + 1 for s..

Answer:
-6

Question:
Solve 1 = -3*b - 11 for b..

Answer:
-4

Question:
Solve -233 - 288 = -168*h + 151 for h..

Answer:
4

Question:
Solve -51 = 230*f - 213*f for f..

Answer:
-3