Question:
Solve 2126*h + 3200*h - 14922 = 352*h for h..

Answer:
3

Question:
Solve -2*z = z + 4*z for z..

Answer:
0

Question:
Solve -18696 = -97*r - 137*r - 94*r for r..

Answer:
57

Question:
Solve 120 = 586*w - 576*w for w..

Answer:
12