question: Teacher asked me this: Solve 0 = -12*y - 507 + 555 for y.
++++++++++
answer: 4

question: Teacher asked me this: Solve -2205 = 66*n - 213*n for n.
++++++++++
answer: 15

question: Teacher asked me this: Solve 1556*k + 8326 + 2566 = 0 for k.
++++++++++
answer: -7

question: Teacher asked me this: Solve 28 = -2*o + 48 - 10 for o.
++++++++++
answer:
5