Question:
Solve -2706 = 126*d + 1956 for d..

Answer:
-37

Question:
Solve -1574*r + 144 = -1556*r for r..

Answer:
8

Question:
Solve -134433*h + 134499*h - 2640 = 0 for h..

Answer:
40

Question:
Solve 25*p - 172 = 3 for p..

Answer:
7