SOLUTION: Kei is twice as old as Mira. In three years, the sum of their ages will be four times as much as Kei�s age 6 years ago. How old is Mira?

Question 949416: Kei is twice as old as Mira. In three years, the sum of their ages will be four times as much as Kei�s age 6 years ago. How old is Mira?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
let's say Kei is years old and Mira is years old
if Kei is twice as old as Mira, then we have:
......eq.1
In three years, they will be and years old
the sum of their ages will be

four times as much as Kei�s age years ago,
so, the sum is:
......eq.2
substitute from eq.1
......eq.2....solve for

Mira is years old.
and Kei is years old

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