question: Teacher asked me this: Solve 155*u = 154*u - 4 for u.
++++++++++
answer: -4

question: Teacher asked me this: Solve 35*s + 659 = 274 for s.
++++++++++
answer: -11

question: Teacher asked me this: Solve 3711*k = -1243*k + 31077 - 204467 for k.
++++++++++
answer: -35

question: Teacher asked me this: Solve -469*f - 614*f = -396*f + 951*f - 67158 for f.
++++++++++
answer:
41