Question:
Solve -120*i - 191*i = 4976 for i..

Answer:
-16

Question:
Solve -20313*z = -20252*z - 488 for z..

Answer:
8

Question:
Solve 136*c + 1664985 - 1667569 = 0 for c..

Answer:
19

Question:
Solve -29*c + 152 = -138 for c..

Answer:
10