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受欢迎的 Word Problems >

one number is 2 less than a second number. twice the second number is 7 less than 3 times the first. find the 2 numbers.

解答

o n e n u mb er i s 2 l ess t han a seco n d n u mb er . tw i ce t h e seco n d n u mb er i s 7 l ess t han 3 t im es t h e f i rs t . f in d t h e 2 n u mb ers .

解答

The numbers : 11, 13

求解步骤

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = y - 2

2 y = 3 x - 7

x = y - 2, 2 y = 3 x - 7 : x = 11, y = 13

The numbers : 11, 13

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