question: Teacher asked me this: Solve 11*u - 91 = -190 for u.
++++++++++
answer: -9

question: Teacher asked me this: Solve 505*b + 915*b + 15620 = 0 for b.
++++++++++
answer: -11

question: Teacher asked me this: Solve 29 = -4*y + 17 for y.
++++++++++
answer: -3

question: Teacher asked me this: Solve 9*k = k + 24 for k.
++++++++++
answer:
3