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Evaluate the following:$[-86 + (-42) ] + [ - 181 - (-63)]$
Given :
The given expression is $[-86 + (-42) ] + [ - 181 - (-63)]$.
To do :
We have to evaluate the given expression.
Solution :
We know that,
$(+) \times (-) = (-)$
$(-) \times (-) = +$
$[-86 + (-42) ] + [ - 181 - (-63)] = [-86 - 42 ] + [ - 181 + 63]$
$= -(86+42)-(181-63)$
$= -128-118$
$= -(128+118)$
$= -246$.
Therefore, the value of the given expression is $-246$.
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