SOLUTION: Renee is 26 years younger than her mother. The sum of their ages is 54. How old is Renee's mother? 54 years old

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Question 121962This question is from textbook Fundmentals of Alegebraic Modeling
: Renee is 26 years younger than her mother. The sum of their ages is 54. How old is Renee's mother? 54 years old
This question is from textbook Fundmentals of Alegebraic Modeling

Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
Write an equation for each statement:
:
"Renee is 26 years younger than her mother."
Let m = mom's age
then
r = (m-26)
:
"The sum of their ages is 54."
m + r = 54
:
How old is Renee's mother?
Substitute (m-26) in the above equation
m + (m-26) = 54
2m - 26 = 54
Add 26 to both sides:
2m = 54 + 26
2m = 80
m = 80/2
m = 40 yrs is Mom's age
:
:
Check our solution:
that would make r = 14
40 + 14 = 54

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