question: Teacher asked me this: Solve -y + 9 - 11 = 0 for y.
++++++++++
answer: -2

question: Teacher asked me this: Solve 7*z - 2 = 5 for z.
++++++++++
answer: 1

question: Teacher asked me this: Solve 2808*h - 191145 + 17049 = 0 for h.
++++++++++
answer: 62

question: Teacher asked me this: Solve 153*n - 137 = 139*n + 45 for n.
++++++++++
answer:
13