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AD is the perpendicular bisector of BC.  BD = 5x - 10 and DC = 3x + 10.  Determine the value of x.

 

 Mar 21, 2021
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Hey there!

 

Since \(BD=DC\) we can do some algebra to find \(x\):

 

\(5x-10=3x+10\)

\(2x=20\)

\(\therefore x=10\)

 

Hope this helped :)

 Mar 21, 2021

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