Question

[-33-(-27)]+[88+(-82)]

Answer 1

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$[-33 - (-27)] + [88+(-82)]$

$[-33 + 27] + [88-82]$

$[-6] + [6]$

$=0$

Answer 2

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Sol : [ - 33 - ( - 27 ) ] + [ 88 + ( - 82 ) ]

 
    = [ - 33 + 27 ] + [ 88 - 82 ]

   = [ - 6 ] + [ 6 ]

   = - 6 + 6

   = 0.


♦ When there is two symbols ( + ) and ( - ) , such that one of them is in bracket then it will be ( - ).

Ex : 5 + ( - 6 ) = 5 - 6.

♦ When there is two same symbol that is ( + ) and ( + ) or ( - ) and ( - ),the result will be ( + ).

Ex : 5 - ( - 5 ) = 5 + 5 ; 5 + ( 5 ) = 5 + 5.


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