Question:
Solve 2617*l - 10 = 2627*l for l..

Answer:
-1

Question:
Solve -77*w - 38 - 401 = 100 for w..

Answer:
-7

Question:
Solve -2239*r + 93249 - 19362 = 0 for r..

Answer:
33

Question:
Solve 31*k - 26*k - 86*k - 2835 = 0 for k..

Answer:
-35