Question:
Solve 6208*v - 6169*v = -780 for v..

Answer:
-20

Question:
Solve 160*u + 32252 = 893*u for u..

Answer:
44

Question:
Solve -63 = i - 67 for i..

Answer:
4

Question:
Solve -80*m + 71*m - 214*m = 9812 for m..

Answer:
-44