Question:
Solve 32 = -9*n + 23 for n..

Answer:
-1

Question:
Solve -30 = 57*z - 72*z for z..

Answer:
2

Question:
Solve -14*h = -277*h + 2104 for h..

Answer:
8

Question:
Solve 2079*d - 292554 = 4703*d + 2683*d + 89550 for d..

Answer:
-72