SOLUTION: Allen is 4 yr older than his brother Randy. Three years ago, Allen was twice as old as Randy. How old is each now? Please solve using system of equations if possible please.
Algebra ->
Customizable Word Problem Solvers
-> Age
-> SOLUTION: Allen is 4 yr older than his brother Randy. Three years ago, Allen was twice as old as Randy. How old is each now? Please solve using system of equations if possible please.
Log On
Question 766466: Allen is 4 yr older than his brother Randy. Three years ago, Allen was twice as old as Randy. How old is each now? Please solve using system of equations if possible please. Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Allen is 4 yr older than his brother Randy. Three years ago, Allen was twice as old as Randy. How old is each now? Please solve using system of equations if possible please.
***
let x=Allen's present age
let y=Randy's present age
x=y+4
..
3 yrs ago:
x-3=Allen's age
y-3=Randy's age
x-3=2(y-3)
...
x=y+4
x-3=2(y-3)=2y-6
..
x-y=4
x-2y=-3
subtract:
y=7
x=7+4=11
..
Allen's present age=11
Randy's present age=7
(