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Question

Evaluate the following :
$$ -77 + (-84) + 318 $$

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Solution

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$$ -77 + (-84) + 318 $$
$$ = -77 - 84 + 318 $$
$$ = -(77 + 84) + 318 $$
$$ = -(161) + 318 $$
$$ = -161 + 318 $$
$$ = 318 - 161 = 157 $$

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