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人気のある Word Problems >

A number is 9 more than another number. Twice the sum of the two numbers is 14 . Find the two numbers.

解

A n u mb er i s 9 m ore t han an o t h er n u mb er . Tw i ce t h e s u m o f t h e tw o n u mb ers i s 14 . F in d t h e tw o n u mb ers .

解

The numbers : 8, - 1

解答ステップ

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 9 + y

2 (x + y) = 14

x = 9 + y, 2 (x + y) = 14 : x = 8, y = - 1

The numbers : 8, - 1

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