Question:
Solve -65*n - 99*n = -125 - 531 for n..

Answer:
4

Question:
Solve 9*w = -110*w - 1018 - 3367 - 4540 for w..

Answer:
-75

Question:
Solve -405 = -154*c + 183*c - 144 for c..

Answer:
-9

Question:
Solve 187 = 18*v - 11 for v..

Answer:
11