riedelk658kater80 riedelk658kater80

14-11-2016
Mathematics

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K is the midpoint of . if = 3x + 1 and , find the length of

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melhaha00 melhaha00

14-11-2016

3x + 1 = 1/3x + 9 Multiply through by 3
9x + 3 = x + 27 Subtract x
8x + 3 = 27 Subtract 3
8x = 24
x = 3

AK = 3*3 + 1 = 10

AB = 2*AK = 20

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