90 ÷ 10, which gives 9.
Then, they add 7 to 9, which gives 16.
Finally, they multiply 16 by 2, which gives 32.
Wait, even if you solve it incorrectly from left to right, you get 32, not 18!
So how could anyone possibly get 18?
Some people might make another error, such as adding before multiplying anddividing.
If you calculate 10 + 7 first, you get 17, which still leads nowhere near 18.
Therefore, no matter which common calculation method or mistake you use, the result is never 18.
This makes the statement “Answer is NOT 18!” absolutely correct in
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