Question 1134420
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The condition means


    x + 406 = 3x + 66.


Solve for x, which stands for the smaller number


    406 - 66 = 3x - 2x

    340 = 2x   ====================>  x = 340/2 = 170.


<U>ANSWER</U>.  The smaller number is 170;  the larger one is  170 + 406 = 576.
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