Two times the greater of two consecutive integers is 9 less than three times the lesser integer. What are the integers?

解

Tw o t im es t h e g re a t er o f tw o co n sec u t i v e in t e g ers i s 9 l ess t han t h ree t im es t h e l esser in t e g er . Wha t a re t h e in t e g ers ?

The numbers : 11, 12

解答ステップ

Represent the numbers with

x

First number : x

Consecutive number : x + 1

A.T.Q.:

2 (x + 1) = 3 x - 9

解く

2 (x + 1) = 3 x - 9 : x = 11

x + 1 = 11 + 1 = 12

The numbers : 11, 12