SOLUTION: Reggie is 5 years old than laarni. five years ago, the sum of their ages was 25. how old are they now?

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Age -> SOLUTION: Reggie is 5 years old than laarni. five years ago, the sum of their ages was 25. how old are they now?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   


Question 154299: Reggie is 5 years old than laarni. five years ago, the sum of their ages was 25. how old are they now?
Answer by jojo14344(1512) About Me  (Show Source):
You can put this solution on YOUR website!
Reggie's age = "x+5"
why? because laarni's age = "x"
Five years ago:
x%2B5-highlight%285%29%2Bx-highlight%285%29=25 ----------------> working eqn
substract 5 yrs from their ages and sum up to 25.
Continuing:
x%2Bcross%285%29-cross%285%29%2Bx-5=25
2x=25%2B5
cross%282%29x%2Fcross%282%29=cross%2830%2916%2Fcross%282%29
x=15 -------------------------> Laarnis' age
x%2B5=15%2B5=20 ------------------> reggie's age
To check, 5 years ago: Go back working eqn
20-highlight%285%29%2B15-highlight%285%29=25
15%2B10=25
25=25
Thank you,
Jojo