question: Teacher asked me this: Solve 9*h - 11*h + 4 = 0 for h.
++++++++++
answer: 2

question: Teacher asked me this: Solve 132 = 79*z - 57*z for z.
++++++++++
answer: 6

question: Teacher asked me this: Solve -41 - 91 = -33*i for i.
++++++++++
answer: 4

question: Teacher asked me this: Solve -5*q + 11*q = 0 for q.
++++++++++
answer:
0