Question:
Solve -24447 = -2087*c + 4771 for c..

Answer:
14

Question:
Solve 6*s + 1847 = 1697 for s..

Answer:
-25

Question:
Solve 0 = 19166*r - 820431 - 770347 for r..

Answer:
83

Question:
Solve -109*a = -108*a + 2 for a..

Answer:
-2