Question:
Solve -12945 = 32*o - 13233 for o..

Answer:
9

Question:
Solve -126*z + 111*z = 0 for z..

Answer:
0

Question:
Solve 723*s + 3072 + 543 = 0 for s..

Answer:
-5

Question:
Solve -1890*o + 1865*o + 325 = 0 for o..

Answer:
13