Question 1139025
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From the condition, you have these two equations


    X  + Y = 90000   (1)

    2X - Y = 12000   (2)


(where X = CD, Y = education).


Add equations (1) and (2).


    3X = 90000 + 12000 = 102000    =====>  X = {{{102000/3}}} = 34000 dollars in CD    <U>ANSWER</U>


The rest,  90000 - 34000 = 56000 in education.    <U>ANSWER</U>


<U>CNECK</U>.   2*34000 - 56000 = 68000 - 56000 = 12000.    ! Correct !
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Solved.