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Phổ biến Word Problems >

the sum of two numbers is 21. twice the smaller number is three more than the larger number

Lời Giải

t h e s u m o f tw o n u mb ers i s 21. tw i ce t h e s ma ll er n u mb er i s t h ree m ore t han t h e l a r g er n u mb er

Lời Giải

The numbers : 8, 13

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 21

2 x = 3 + y

x + y = 21, 2 x = 3 + y : x = 8, y = 13

The numbers : 8, 13

Ví dụ phổ biến

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