Question:
Solve -13*o = -17*o for o..

Answer:
0

Question:
Solve 60*a - 373 + 14 - 835 = 66 for a..

Answer:
21

Question:
Solve -7*f = -3 - 4 for f..

Answer:
1

Question:
Solve 29*k - 1152 = 167*k + 6*k for k..

Answer:
-8