one number is 2 less than a second number. twice the second number is 8 less than 3 times the first. find the two numbers.

解

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 8 l ess t han 3 t im es t h e f i rs t . f in d t h e tw o n u mb ers .

The numbers : 12, 14

解答ステップ

Represent the numbers with

x and y

number 1 : x

number 2 : y

A.T.Q.:

x = y - 2

2 y = 3 x - 8

x = y - 2, 2 y = 3 x - 8 : x = 12, y = 14

The numbers : 12, 14