Question:
Solve -66*b + 41465 = 41993 for b..

Answer:
-8

Question:
Solve 181 - 203 = 6*d - 17*d for d..

Answer:
2

Question:
Solve 6*b - 104 = -34*b - 304 for b..

Answer:
-5

Question:
Solve -77*v + 71*v = -619*v - 6130 for v..

Answer:
-10