Question:
Solve -8014*v + 5100 = -8439*v for v..

Answer:
-12

Question:
Solve 86*y = -35*y - 63*y + 22*y + 10206 for y..

Answer:
63

Question:
Solve 9*u - 982 = -883 for u..

Answer:
11

Question:
Solve 1370 + 3656 = 223*u - 772 for u..

Answer:
26