Question:
Solve 4383 = 322*x + 1163 for x..

Answer:
10

Question:
Solve 173415 = 187*u + 181456 for u..

Answer:
-43

Question:
Solve -4568*k + 122677 = 13045 for k..

Answer:
24

Question:
Solve 28*d = -188 + 20 for d..

Answer:
-6