Question:
Solve -28*x - 18 = -4*x - 30*x for x..

Answer:
3

Question:
Solve 0 = -259*l + 223*l - 108 for l..

Answer:
-3

Question:
Solve 0 = -1331*j - 8412 - 10222 for j..

Answer:
-14

Question:
Solve 0 = -2527*k + 2264*k + 2815 + 3234 for k..

Answer:
23