Question:
Solve 0 = d - 11 + 9 for d..

Answer:
2

Question:
Solve -1052 = -3*u - 1034 for u..

Answer:
6

Question:
Solve -2156 = 192*h + 1236 - 128 for h..

Answer:
-17

Question:
Solve 4822*n - 4679*n + 1287 = 0 for n..

Answer:
-9