question: Teacher asked me this: Solve 386 - 665 = 9*v for v.
++++++++++
answer: -31

question: Teacher asked me this: Solve 1866*o + 163144 - 60514 = 0 for o.
++++++++++
answer: -55

question: Teacher asked me this: Solve 171 = -19854*u + 19835*u for u.
++++++++++
answer: -9

question: Teacher asked me this: Solve -162*n = 54*n - 20*n + 3217 + 6975 for n.
++++++++++
answer:
-52