Question

The sum of two integers is 30 if one of them is -42 find the other

Answer 1

Answer:

$\red { Required \: number }\green{=72}$

Step-by-step explanation:

$Let \: m \:and \: n \: two \: numbers.$

$Let \: m = -42 , \: n = \red {?}$

$m + n = 30 \: (Given)$

$\implies -42 + n = 30$

$\implies n = 30 + 42$

$\implies n = 72$

Therefore.,

$\red { Required \: number (n)}\green{=72}$

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Answer 2

Solution :

Let ,

The unknown number be x

According to the question ,

$\sf \hookrightarrow - 42 + x = 30 \\ \\ \sf \hookrightarrow x = 30 + 42 \\ \\ \sf \hookrightarrow x = 72$

Hence , the required number is 72 respectively