Question 1172574
<pre><font face = "consolas" color = "indigo" size = 4><b>
Hi  
Let x represent Julie's age  
Janet  (x+3)
Brother (x-8) 
The sum of all their ages is 55 years.
x + (x+3) + (x-8) = 55
3x -5 = 55
3x = 60
x = 20
Julie 20, Janet 23, the brother 12
CHECKING our answer***
20 + 23 + 12 = 55 CHECKS!
Wish You the Best in your Studies.