question: Teacher asked me this: Solve 986*u - 985*u + 3 = 0 for u.
++++++++++
answer: -3

question: Teacher asked me this: Solve 0 = 43*k - 46*k - 3 for k.
++++++++++
answer: -1

question: Teacher asked me this: Solve 0 = 14*o + 9*o - 20 - 3 for o.
++++++++++
answer: 1

question: Teacher asked me this: Solve 214*z + 3121 + 493 = 492*z for z.
++++++++++
answer:
13