question: Teacher asked me this: Solve 57 - 73 = -8*k for k.
++++++++++
answer: 2

question: Teacher asked me this: Solve 0 = 267*v + 3391 - 4023 - 25000 for v.
++++++++++
answer: 96

question: Teacher asked me this: Solve -111 + 63 = -48*k for k.
++++++++++
answer: 1

question: Teacher asked me this: Solve 9*r = 19*r + 163 - 3 for r.
++++++++++
answer:
-16