Find the sum of the following:
$(- 3) + (- 6)$

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Solution

$(- 3) + (- 6)$
Since $- 3$ and $- 6$ are both negative.
For adding integers with the same sign, we have to add their absolute values and the sum obtained will have a negative sign if both integers are negative.
Therefore, the sum $= - (|- 3| + |- 6|)$
$= - (3 + 6)$
$= - 9$ .
Final Answer: $(- 3) + (- 6)$ $= - 9$

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