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Before solving the exercise, let's start by simplifying the power and the root:
Now, we arrange the exercise accordingly:
According to the rules of the order of operations, parentheses are solved first:
Now we focus on the fraction, we start with the division exercise in the numerator, then we add and subtract as appropriate:
We solve the exercise from left to right, first the division exercise and finally we multiply:
\( 20\div(4+1)-3= \)
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