Question by Summer Clouds - Discuss with MathYouLike

Summer Clouds moderators

23/11/2017 at 15:20

Esme is thinking of two integers. One integer is 4 times the other, and their sum is 18 more than 3 times the smaller integer. What is the smaller of the integers Esme is thinking of?

List of answers

Lê Quốc Trần Anh Coordinator 23/11/2017 at 17:42

Call the bigger number is a and the smaller number is b

We have: \(a+b=3b+18\)

=> \(a=2b+18\) but \(a=4b\)

=> \(4b-2b=18\)

<=> \(2b=18\) <=> \(b=18:2=9\)
Selected by MathYouLike

Weekly ranking