question: Teacher asked me this: Solve -42*x + 65*x + 64*x - 68321 + 60491 = 0 for x.
++++++++++
answer: 90

question: Teacher asked me this: Solve 1011*s - 452948 = -541916 for s.
++++++++++
answer: -88

question: Teacher asked me this: Solve -13*x - 3*x = -16 for x.
++++++++++
answer: 1

question: Teacher asked me this: Solve 9*s + 14 = -31 for s.
++++++++++
answer:
-5