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'''6÷2(1+2)=?''' is the pre-algebra question that a majority of respondents seem to get wrong. If you are in the camp that knows the correct answer is 1, read no further. If you believe the answer is 9, you should probably review this document -- {{highlight|there is only one number that 6 can be divided by to result in 9, and that number is 2/3.}}
==Proof incorrect solution ==
We substitute x for 2(1+2) from the equation:
If
:6÷x = 9
then
:6÷9 = x
there is a Common Denominator of 3 so we reduce the fraction...
:2÷3 = x
Now we compare the value given in the equation to the value we find for x.
:2÷3 '''!=''' 2(1+2)
Therefore:
:6÷2(1+2) '''!=''' 9
==Processing rules==