Question:
Solve 3982*v - 822*v - 33399 + 19860 = -124139 for v..

Answer:
-35

Question:
Solve -16488*r + 16529*r = 574 for r..

Answer:
14

Question:
Solve -58*p + 156 = 40 for p..

Answer:
2

Question:
Solve -19*r = -15*r - 12 for r..

Answer:
3