Now that's an interesting answer. Unfortunately the author didn't anticipate that response.
Please look at the problem you solved and compare it to this:
Check to see if you have exactly the same problem written down; perhaps you changed something (like one of the operation signs or a number). Check to see that the parentheses were properly placed.
If you found no copying error, double-check your arithmetic. Also, check to see if you brought down the correct quantities line-by-line, and be sure you didn't 're-use' any of them.
Now, make a NEW copy of the problem (be certain that you have this problem written down), then solve it carefully:
36 - 2(3 + 5) + 6 =
Order of Operations Automatic Flip-Through SLIDE SHOW
Overview of the Order of Operations
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