question: Teacher asked me this: Solve 6*o = -0 - 12 for o.
++++++++++
answer: -2

question: Teacher asked me this: Solve -77*q - 10*q - 1720 = -q for q.
++++++++++
answer: -20

question: Teacher asked me this: Solve 21 - 36 = -5*h for h.
++++++++++
answer: 3

question: Teacher asked me this: Solve 165366*d + 330 = 165396*d for d.
++++++++++
answer:
11