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Pls help and remember to include the paranthesis

Pls help and remember to include the paranthesis-example-1

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i did this to get 47.5 as the answer not 47 im not sure why but i did (61-7+7×1/2)+17 using the PEMDAS please excuse my dear aunt sally
parenthesis exponents multiply divide add subtract
User Adam Bertram
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