Question 1122004
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<pre>
Let x be the Maggie age.


Then the brother's age is (2x-3) years.


The condition says


x + (2x-3) = 24,    or


x + 2x - 3 = 24,


3x = 24 + 3,


3x = 27,


x = 27/3 = 9.


<U>Answer</U>.  Maggie is 9 years old.
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Solved.