Question:
Solve -648*p - 4368 = -1194*p for p..

Answer:
8

Question:
Solve -1415*k + 4165 = 21145 for k..

Answer:
-12

Question:
Solve 971 - 40 = -49*w for w..

Answer:
-19

Question:
Solve 30*w - 833 + 263 = 0 for w..

Answer:
19