question: Teacher asked me this: Solve -2*f = -f - 2 for f.
++++++++++
answer: 2

question: Teacher asked me this: Solve 0 = -3588*s + 3552*s - 216 for s.
++++++++++
answer: -6

question: Teacher asked me this: Solve 0 = 1461*i + 220*i - 121032 for i.
++++++++++
answer: 72

question: Teacher asked me this: Solve -15*p - 52 = -7 for p.
++++++++++
answer:
-3