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인기 있는 Word Problems >

The sum of three numbers is 33. The second number is 7 less than the first, and the third number is 2 more than the second.

해법

T h e s u m o f t h ree n u mb ers i s 33. T h e seco n d n u mb er i s 7 l ess t han t h e f i rs t, an d t h e t hi r d n u mb er i s 2 m ore t han t h e seco n d .

해법

The numbers : 45, - 7, - 5

솔루션 단계

Represent the numbers with

x, y, z

:

number 1 : x

number 2 : y

number 3 : z

A.T.Q.:

x + y + z = 33

y = - 7

z = 2 + y

x + y + z = 33, y = - 7, z = 2 + y : x = 45, y = - 7, z = - 5

The numbers : 45, - 7, - 5

인기 있는 예

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