Question 1143116
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Let x = in how many years . . . 


Then you have this equation to determine x


    12 + x = 2*(5+x)


Simplify and solve for x


    12 + x = 10 + 2x

    12 - 10 = 2x - x

     2      = x.


<U>ANSWER</U>.  In 2 years.
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