Question:
Solve 72*s - 27*s = -34*s - 5685 + 3394 for s..

Answer:
-29

Question:
Solve -2*w + 6 = -4 for w..

Answer:
5

Question:
Solve 8*n + 1100 - 1334 = 21*n for n..

Answer:
-18

Question:
Solve -357*d + 3223 = 9649 for d..

Answer:
-18