SOLUTION: I am 6 years older than my sister.How old will I be when I am 3 times older than she?
Algebra.Com
Question 168095: I am 6 years older than my sister.How old will I be when I am 3 times older than she?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
I am 6 years older than my sister.How old will I be when I am 3 times older than she?
.
Let x = sister's age
then
x-6 = "my age"
.
3(x-6) = x
3x-18 = x
2x-18 = 0
2x = 18
x = 9 yrs (sister's age)
.
"my age":
x-6 = 9-6 = 3 years old (solution)
RELATED QUESTIONS
I am 6 years older than my sister what was the number of years is my sister age when I... (answered by rfer,Alan3354)
when i am 33 my sister will be 5 years older than when she was half as old again as... (answered by Edwin McCravy)
my sister is 5 years older than i am. in 5 years, she will be 18 years old. how old am... (answered by ewatrrr)
i am 3 times older than my sister. Six years ago i was five times as old as she was, how... (answered by Alan3354,LOL MASTER)
i am eight times older than my daughter now. in three years, i will be five times older... (answered by DrBeeee)
I am 16 years old. i'm also 4 times older than my sister. after many years i'm will be 2... (answered by Alan3354,MathTherapy)
I am 23 years older than my son Arnez Jr who is 15. How old will I be when I am 3 times... (answered by Alan3354)
My sister is three years older than me i am 18 how old is... (answered by Maths68)
Five Years ago I was 5 times older than my son. In 8 Years I will be 3 times older than... (answered by josmiceli)