SOLUTION: please help. how do i do this." The sum of the ages of two sisters is 25. The second sister age is 5 more then 3 times the first sisters age. find the two ages

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: please help. how do i do this." The sum of the ages of two sisters is 25. The second sister age is 5 more then 3 times the first sisters age. find the two ages      Log On


   

Question 13051: please help. how do i do this." The sum of the ages of two sisters is 25. The second sister age is 5 more then 3 times the first sisters age. find the two ages
Answer by elima(1433) About Me  (Show Source):
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The sum of the ages of two sisters is 25. The second sister age is 5 more then 3 times the first sisters age. find the two ages
Let x be the age of the first sister. Then the 2nd sister is 5 "more than", which means +, "3 times", which means 3x the first sister.
So we have our equation:
x+(5+3x)=25
Now we solve this;
Subtract 5 from both sides; and add the like terms;
x+5+3x-5=25-5
4x=20
Now divide 4 from both sides:
4x%2F4=20%2F4
x=5
Hope you get it
=)