Question:
Solve -c = -21 + 24 for c..

Answer:
-3

Question:
Solve 14*y + 426 = -3*y + 341 for y..

Answer:
-5

Question:
Solve -44616 = 237016*k - 235664*k for k..

Answer:
-33

Question:
Solve 789*h - 682*h = -2001 - 1209 for h..

Answer:
-30