Question:
Solve 309*w + 100*w = -20475 - 1611 for w..

Answer:
-54

Question:
Solve 443*s - 17485 - 20526 = -7887 for s..

Answer:
68

Question:
Solve 66272*s + 28 = 66270*s for s..

Answer:
-14

Question:
Solve 8*k + 0 - 24 = 0 for k..

Answer:
3