Question:
Solve -21*c + 136 = -55*c for c..

Answer:
-4

Question:
Solve 6*s = -57*s - 309*s - 434*s - 119288 for s..

Answer:
-148

Question:
Solve -763*q = -4300 - 4856 for q..

Answer:
12

Question:
Solve -154*z + 12 = -156*z for z..

Answer:
-6