Question:
Solve 0 = 292*u - 42*u + 2117 - 117 for u..

Answer:
-8

Question:
Solve -21*u = -80 - 4 for u..

Answer:
4

Question:
Solve 77*m - 117*m - 85*m - 495 + 3745 = 0 for m..

Answer:
26

Question:
Solve 4*x - 808 - 380 = -18*x for x..

Answer:
54