Question:
Solve 0 = 7*a - 110 - 93 + 231 for a..

Answer:
-4

Question:
Solve -41*h = -38*h - 3 for h..

Answer:
1

Question:
Solve -1768*o + 1780*o - 24 = 0 for o..

Answer:
2

Question:
Solve -314 + 285 - 331 = 18*m for m..

Answer:
-20