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受欢迎的 Word Problems >

The sum of two numbers is 15 and their 差集 is 1 . What are the numbers?

解答

T h e s u m o f tw o n u mb ers i s 15 an d t h e i r d i ff ere n ce i s 1 . Wha t a re t h e n u mb ers ?

解答

The numbers : 8, 7

求解步骤

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 15

x - y = 1

x + y = 15, x - y = 1 : x = 8, y = 7

The numbers : 8, 7

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