Question:
Solve -217*k + 93*k - 87*k = 4431 for k..

Answer:
-21

Question:
Solve 19048 = 2149*w - 3732*w - 17361 for w..

Answer:
-23

Question:
Solve 4*j + 35 = -3*j for j..

Answer:
-5

Question:
Solve 37*n + 183 = -24*n for n..

Answer:
-3