Question:
Solve -527*b = 1036*b - 408*b + 51975 for b..

Answer:
-45

Question:
Solve 0*u + 389 - 346 = -u for u..

Answer:
-43

Question:
Solve 961*l + 29414 = -1140*l for l..

Answer:
-14

Question:
Solve 185*x = 55*x + 910 for x..

Answer:
7