Question:
Solve 114050*u = 113747*u - 12120 for u..

Answer:
-40

Question:
Solve -3*k + 0*k = -3 for k..

Answer:
1

Question:
Solve -25*d - 6*d = 452*d + 6762 for d..

Answer:
-14

Question:
Solve 129 - 31 = 36*x - 10 for x..

Answer:
3