Question:
Solve -9290*d = -6596*d - 121230 for d..

Answer:
45

Question:
Solve 26*u + 25*u - 549 = -10*u for u..

Answer:
9

Question:
Solve -14951 = 479*k - 5371 for k..

Answer:
-20

Question:
Solve 0 = -1466*v + 1457*v - 9 for v..

Answer:
-1