Question:
Solve -1181*n + 4006 = 822*n for n..

Answer:
2

Question:
Solve -879 = -165*c + 2649 - 393 for c..

Answer:
19

Question:
Solve 141*v + 180*v + 454*v - 34*v = -39273 for v..

Answer:
-53

Question:
Solve 21*x + 14*x - 280 = 0 for x..

Answer:
8