question: Teacher asked me this: Solve -264 = -46*f + 13*f for f.
++++++++++
answer: 8

question: Teacher asked me this: Solve -53*f - 27200 = -28631 for f.
++++++++++
answer: 27

question: Teacher asked me this: Solve -9 = 25*k + 191 for k.
++++++++++
answer: -8

question: Teacher asked me this: Solve 6*n - 3 + 15 = 0 for n.
++++++++++
answer:
-2