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Integers — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsIntegers3 Marks
Question
Simplify the following:
$23-\Big[23-\big\{23-(23-\overline{23-23})\big\}\Big]$
✓

Answer

$23-\Big[23-\big\{23-(23-\overline{23-23})\big\}\Big]$$=23-\big[23-\big\{23-(23-0)\big\}\big]$
$=23-\big[23-(23-23)\big]$
$=23-[23-0]$
$=23-23$
$=0$
$\therefore\ 23-\Big[23-\big\{23-(23-\overline{23-23})\big\}\Big]=0$

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