question: Teacher asked me this: Solve -5 = -5*i + 6*i for i.
++++++++++
answer: -5

question: Teacher asked me this: Solve 0 = 29*p + 5*p + 68 for p.
++++++++++
answer: -2

question: Teacher asked me this: Solve 15 = -5*i - 0 for i.
++++++++++
answer: -3

question: Teacher asked me this: Solve 521*k - 291*k = -920 for k.
++++++++++
answer:
-4