question: Teacher asked me this: Solve 0 = -20*q + 11*q + 72 for q.
++++++++++
answer: 8

question: Teacher asked me this: Solve 20*w - 258 = 63*w for w.
++++++++++
answer: -6

question: Teacher asked me this: Solve -40*q = -157*q - 1404 for q.
++++++++++
answer: -12

question: Teacher asked me this: Solve -37 = 2*s - 33 for s.
++++++++++
answer:
-2