Question:
Solve 145 = 53*l - 67 for l..

Answer:
4

Question:
Solve 2*w + 637 = -8*w + 59*w for w..

Answer:
13

Question:
Solve -3422*k = 134555 - 28473 for k..

Answer:
-31

Question:
Solve 0 = 22*k - 30*k + 5368 - 5128 for k..

Answer:
30