Question:
Solve 0 = 174*u - 3553 - 9159 + 1440 + 1006 for u..

Answer:
59

Question:
Solve 363*d - 817 = 406*d for d..

Answer:
-19

Question:
Solve -339806*n - 8851 = -339973*n for n..

Answer:
53

Question:
Solve -26 = 5*q - 3*q for q..

Answer:
-13