Question:
Solve 254*u - 7336 = -55*u - 280*u + 65*u for u..

Answer:
14

Question:
Solve 1353*u - 39345 = -3404 - 3469 for u..

Answer:
24

Question:
Solve -r + 15687 = -15*r + 15771 for r..

Answer:
6

Question:
Solve -192*v + 1885 = -995 for v..

Answer:
15