Question:
Solve -229*k + 6440 = 55*k - 54*k for k..

Answer:
28

Question:
Solve -371 = -2*n - 379 for n..

Answer:
-4

Question:
Solve -17*c = -18*c - 5 for c..

Answer:
-5

Question:
Solve -66*z = 143*z - 1702 - 3105 for z..

Answer:
23