SOLUTION: A woman is three times as old as her daughter. six years ago, the sum of their ages was 36. find the age of the daughter.

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: A woman is three times as old as her daughter. six years ago, the sum of their ages was 36. find the age of the daughter.      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1008430: A woman is three times as old as her daughter. six years ago, the sum of their ages was 36. find the age of the daughter.
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
x = woman's age
y = daughter's age

x = 3y
(x-6)+(y-6) = 36

Plug in the first equation into the second.

x + y = 36 + 12 = 48
4y = 48
y = 12

The daughter is 12 years old.