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help me please i dont get it

label Mathematics
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Jan 22nd, 2015

Since these lines are median KT: KB = 2:3

3(6x+6)/5 = 2(11/5x-6/5)

18x+18 = 22x-12

-4x = -12-18= -30

x =30/4 =7.5

Verification

LHS =3(45+6)/5 = 153/5

RHS = 2*(165/10-12/10) = 2*153/10 =153/5


Jan 22nd, 2015

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Jan 22nd, 2015
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