question: Teacher asked me this: Solve 204*k + 690 = 66*k for k.
++++++++++
answer: -5

question: Teacher asked me this: Solve 471202*a = 470890*a - 11232 for a.
++++++++++
answer: -36

question: Teacher asked me this: Solve 6*q + 2 = -10 for q.
++++++++++
answer: -2

question: Teacher asked me this: Solve -650*b = -659*b - 72 for b.
++++++++++
answer:
-8