question: Teacher asked me this: Solve 70*b + 780 = 150 for b.
++++++++++
answer: -9

question: Teacher asked me this: Solve 662*z - 401*z + 433*z + 34700 = 0 for z.
++++++++++
answer: -50

question: Teacher asked me this: Solve 0 = 2961*i - 2909*i for i.
++++++++++
answer: 0

question: Teacher asked me this: Solve 8*y = 4*y for y.
++++++++++
answer:
0