9+(1/5)[{-20×(25-23-13)}÷(-15)]
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Step-by-step explanation:
9+(1/5)[{-20×(25-23-13)}÷(-15)].
=9+(1/5)[{-20×-11}÷(-15)].
=9+(1/5)[220÷ -15]
=9+(1/5)[-44/3]
=9+1/5× -44/5.
=9-44/25.
=(225-44)/25.
=181/25.
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