Question:
Solve 652 - 603 + 831 = 44*h for h..

Answer:
20

Question:
Solve 35*c - 30 = 40*c for c..

Answer:
-6

Question:
Solve -70 = 615*k - 622*k for k..

Answer:
10

Question:
Solve -44*x + 64 = -12*x for x..

Answer:
2