question: Teacher asked me this: Solve 11*v = 17*v - 18 for v.
++++++++++
answer: 3

question: Teacher asked me this: Solve -451*o + 433 + 920 = 0 for o.
++++++++++
answer: 3

question: Teacher asked me this: Solve 141*k - 3891 - 1313 = -1397 for k.
++++++++++
answer: 27

question: Teacher asked me this: Solve 2*z - z = 4 for z.
++++++++++
answer:
4