Question:
Solve -20*v = 206 - 86 for v..

Answer:
-6

Question:
Solve 5081 + 3787 = 58*p + 117*p - 3907 for p..

Answer:
73

Question:
Solve 1081 + 1326 = 20*u + 1947 for u..

Answer:
23

Question:
Solve -761 = 184*b - 13*b + 265 for b..

Answer:
-6