Posted by Anonymous on Thursday, March 29, 2012 at 9:12pm.
1. Lets set
Brian's age= x
Kim's age =y
2."Brian is 26 years oldr than his daughter Kim."
So, if Brian was 26 years younger, thier age would be equal:
y=x-26 ( is our first equation)
3. "The sum of their ages is twice the differences of their ages."
Which means: x+y = 2(x-y)
(sum of ages) (Twice diff age)
Solving, we change the "y" in the bottom of step 3 into x-26 and get:
x+y= 2( x-y)
Since y= x-26,
y= 39 -26
So Kim's age is 13 and Brian's age is 39
Hope this helps :D
algebra - brian is 26 years older than his daughter kim. the sum of their ages ...
Math alg2! - 1.)Mike is 5 years more than twice as old as Tom. The sum of their ...
ALG 2! plz help urgent!! - 1.)Four times a certain number is the same as the ...
algebra - tom is 5 years older than 3 times time age. if the sum of their ages ...
algebra - The present ages in years of four cousins are consecutive multiples of...
Math word problem(algebra) - Carol is y years old&her daughter is 25 years ...
algebra - The difference between the ages of two friends is 2 years. The sum of ...
Algebra 1 - In 5 years time I will be 3 times as old as my son. In 14 years time...
algebra - Ann is five years older than twice her brother Dan's age, a. Write...
MATH - 1. A father is three times as old as his son. Five years ago the sum of ...
For Further Reading