SOLUTION: Lillie is three years older than her sister Shieley. Lillie's brother is six years younger than their sister Shirley. The sum of all their ages is 42. Please help with writing t

SOLUTION: Lillie is three years older than her sister Shieley. Lillie's brother is six years younger than their sister Shirley. The sum of all their ages is 42. Please help with writing t

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Question 1063975: Lillie is three years older than her sister Shieley. Lillie's brother is six years younger than their sister Shirley. The sum of all their ages is 42.
Please help with writing this equation
Answer by mathdad1965(8) (Show Source): You can put this solution on YOUR website!
Let Shirley = x

Let Lillie = x + 3

Lillie's brother = x - 6

Sum = 42

x + (x + 3) + (x - 6) = 42
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