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受欢迎的 Word Problems >

One number is three less than two times another number. If the sum of the numbers is 15, find the numbers.

解答

O n e n u mb er i s t h ree l ess t han tw o t im es an o t h er n u mb er . I f t h e s u m o f t h e n u mb ers i s 15, f in d t h e n u mb ers .

解答

The numbers : 9, 6

求解步骤

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 2 y - 3

x + y = 15

x = 2 y - 3, x + y = 15 : x = 9, y = 6

The numbers : 9, 6

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