SOLUTION: Regie is 5 years old than Lani. Five years ago the sum of their ages was 25. How old are they now?

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Question 148902: Regie is 5 years old than Lani. Five years ago the sum of their ages was 25. How old are they now?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = Lani's age
So Regie's age= x%2B5
Going back 5 years ago,
%28Lanis+%28age%29+-5years%29+%2B+%28Regies+%28age%29+-+5years%29+=+25+years
x-cross%285%29%2Bx%2Bcross%285%29-5=25
2x=25%2B5 ; 2x=30
x=15 --------> Lani's age
x=15%2B5=20 ----> Regie's age
.
It make sense, 5 years ago Lani's age, 15-5=10+years + Regie's age,20-5=15 --------> 10+15=25 years
Thank you,
Jojo