The sum of two integers is $- 278$ . If one of the integers is $- 156$ , find the other.

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Solution

Sum of two integers $= x + y = - 278$
One of them is $y = - 156$
$\Rightarrow$ the other number $= x =$ -278-y$
$\Rightarrow x = - 278 - (- 156)$
$\Rightarrow x = - 278 + 156 = - 122 ‬$
$∴$ the other number $x = - 122$

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The sum of two integers is −278. If one of the integers is −156, find the other.

Sum of two integers=x+y=−278One of them isy=−156⇒ the other number=x=-278-y$⇒x=−278−(−156)⇒x=−278+156=−122‬∴ the other number x=−122

The sum of two integers is $- 278$ . If one of the integers is $- 156$ , find the other.

Sum of two integers $= x + y = - 278$
One of them is $y = - 156$
$\Rightarrow$ the other number $= x =$ -278-y$
$\Rightarrow x = - 278 - (- 156)$
$\Rightarrow x = - 278 + 156 = - 122 ‬$
$∴$ the other number $x = - 122$