question: Teacher asked me this: Solve -3*c = -8*c - 15 for c.
++++++++++
answer: -3

question: Teacher asked me this: Solve 203*k + 46 = 180*k for k.
++++++++++
answer: -2

question: Teacher asked me this: Solve 0 = -158*j + 137*j for j.
++++++++++
answer: 0

question: Teacher asked me this: Solve 11*p + 24 = -p for p.
++++++++++
answer:
-2