Question:
Solve -73*p = 348 - 90 + 837 for p..

Answer:
-15

Question:
Solve 4 = 38*x + 156 for x..

Answer:
-4

Question:
Solve 6466*q - 2333 = 6543*q + 593 for q..

Answer:
-38

Question:
Solve -31*n + 72 + 156 = -268 for n..

Answer:
16