Question:
Solve 1373*x + 4221*x + 218166 = 0 for x..

Answer:
-39

Question:
Solve 4*c - 43 = -23 for c..

Answer:
5

Question:
Solve 0 = -42*r + 44*r - 2 for r..

Answer:
1

Question:
Solve -143*i + 188*i - 45 + 495 = 0 for i..

Answer:
-10