Question:
Solve 102*q - 11*q = 37*q - 209*q - 4734 for q..

Answer:
-18

Question:
Solve -25*r = -19*r - 13 + 37 for r..

Answer:
-4

Question:
Solve 0 = 20*b - 60 + 220 for b..

Answer:
-8

Question:
Solve -141*v + 2416 = -443*v for v..

Answer:
-8