Question:
Solve 369*f + 1868*f + 80532 = 0 for f..

Answer:
-36

Question:
Solve -42*b - 62*b + 9791 = 351*b - 21604 for b..

Answer:
69

Question:
Solve 34 - 38 = -d for d..

Answer:
4

Question:
Solve 73*w - 731 = -251 + 834 for w..

Answer:
18