Question:
Solve -6486*q = -6777*q - 11640 for q..

Answer:
-40

Question:
Solve -171 + 4 = 64*l + 52 + 101 for l..

Answer:
-5

Question:
Solve 0 = 181*a - 87 + 3888 for a..

Answer:
-21

Question:
Solve 19929*l = 39732 - 936537 for l..

Answer:
-45