Alex thinks of a number. he adds 18 then divides it by 2. he gets the same answer that he would have if he had multiplied the original number by 5.

asked Jan 1, 2017 18.4k views

5 votes

by Rrd

7.9k points

Please log in or register to add a comment.

0 votes

Let the original number for the x. Form the equation: (x+18):2=5x. Decide it: x+18=10x; x-10x=-18; -9x=-18; x=2. Answer: x=2.

8.6k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers