Question:
Solve -187*o + 59*o - 512 = 0 for o..

Answer:
-4

Question:
Solve 802 = -82*k - 1972 + 1020 - 1116 for k..

Answer:
-35

Question:
Solve 3*k + 34743 = 34704 for k..

Answer:
-13

Question:
Solve -217*c - 15510 = -547*c for c..

Answer:
47