Evaluate :
$27 - {13 + 4 - (8 + 4 - ¯ ¯¯¯¯¯¯¯¯¯¯ ¯ 1 + 3)}$

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Solution

$27 - {13 + 4 - (8 + 4 - ¯ ¯¯¯¯¯¯¯¯¯¯ ¯ 1 + 3)}$
It can be written as
$= 27 - {13 + 4 - (8 + 4 - 4)}$
By further calculation
$= 27 - {13 + 4 - 8}$
So we get
$= 27 - {13 + (- 4)}$
$= 27 - 9$
$= 18$

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Evaluate :27−{13+4−(8+4−¯¯¯¯¯¯¯¯¯¯¯¯1+3)}

27−{13+4−(8+4−¯¯¯¯¯¯¯¯¯¯¯¯1+3)}It can be written as =27−{13+4−(8+4−4)} By further calculation =27−{13+4−8} So we get =27−{13+(−4)} =27−9 =18

Evaluate :
$27 - {13 + 4 - (8 + 4 - ¯ ¯¯¯¯¯¯¯¯¯¯ ¯ 1 + 3)}$

$27 - {13 + 4 - (8 + 4 - ¯ ¯¯¯¯¯¯¯¯¯¯ ¯ 1 + 3)}$
It can be written as
$= 27 - {13 + 4 - (8 + 4 - 4)}$
By further calculation
$= 27 - {13 + 4 - 8}$
So we get
$= 27 - {13 + (- 4)}$
$= 27 - 9$
$= 18$