Question:
Solve 9*q = 12*q - 9 for q..

Answer:
3

Question:
Solve 3*y - 16*y = 8*y + 9*y - 1380 for y..

Answer:
46

Question:
Solve -11480*r = -12295*r - 47270 for r..

Answer:
-58

Question:
Solve 12266892*v = 12267297*v - 31185 for v..

Answer:
77