Question:
Solve 1362*l - 455 = 1397*l for l..

Answer:
-13

Question:
Solve 60*w - 109 = 11 for w..

Answer:
2

Question:
Solve -45*v + 2647 - 3735 = 91*v for v..

Answer:
-8

Question:
Solve 139 = -3*f + 115 for f..

Answer:
-8