Lillian went out to forage for mushrooms with her handy guidebook. She found 32 mushrooms and used her guidebook to identify which ones were poisonous and which were safe to eat. In the end, she had 9 mushrooms she could safely eat for dinner. Of the rest, she identified twice the amount she ate as poisonous, and a remaining bunch she was uncertain about. How many mushrooms was she uncertain were safe or poisonous? Let's be accurate as possible.
Lillian found 9 of the mushrooms were safe, so there were 32 - 9 = 23 that she found poisonous or uncertain. She knew twice the amount she ate were poisonous, so she found 9 * 2 = 18 poisonous mushrooms. Thus, she was uncertain about 23 - 18 = 5 mushrooms.
The answer: 5.