Question:
Solve 507 = 609810*v - 609771*v for v..

Answer:
13

Question:
Solve 0 = -614*q + 605*q - 45 for q..

Answer:
-5

Question:
Solve 1026*t - 508*t - 104412 = 2038*t + 2209*t for t..

Answer:
-28

Question:
Solve -47 = -v - 42 for v..

Answer:
5