Question:
Solve 183*v = 117*v + 648 + 870 for v..

Answer:
23

Question:
Solve 288573 = -14180*c + 2937*c - 586276 + 65353 for c..

Answer:
-72

Question:
Solve 176*s - 162 = 194*s for s..

Answer:
-9

Question:
Solve 0 = 3*k + 13 + 2 for k..

Answer:
-5