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15-12-2016
Mathematics

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Segment BDSegment BD is a perpendicular bisector of segment ACsegment AC . AD=8x−15AD=8x−15 and DC=57DC=57 .

What is the value of x?

Segment BDSegment BD is a perpendicular bisector of segment ACsegment AC AD8x15AD8x15 and DC57DC57 What is the value of x class=

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15-12-2016

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Аноним Аноним

15-12-2016

AD=8x−15, DC=57

BD is a perpendicular bisector of segment ACsegment
so
AD = DC
8x - 15 = 57
8x = 57 +15
8x = 72
x =72/8
x =9

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