Question

the sum of two integers is -20 if one of them is 9 find the other

Answer 1

hye

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let the other number be x

the sum of two integers is -20 

 one of them is 9

lets form an equation


=> 9 +x = -20

=>x = -20 - 9

=>x = -29


hence the other number is -29

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hope it helps 

Answer 2

let the other no. be x
9+x = -20
x = -9-20
x= -29