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Answer»

In triangleABC DE ll BC AD/DB=AE/EC...(By Basic proportionality theorem)x+2/3x+16=x/3x+5(x+2)(3x+5)=(3x+16)(x)3x^2+5x+6x+10=3x^2+16x9x^2+11x+10=9x^2+16x9x^2-9x^2+11x-16x=-10-5x=-10x= -10/-5x=2

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