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Please help me with this math question i'm not good at math and i don't understand this well

Please help me with this math question i'm not good at math and i don't understand this well
asked 134k views
3 votes
Please help me with this math question i'm not good at math and i don't understand this well

Please help me with this math question i'm not good at math and i don't understand-example-1
asked
User Eugene Khyst
by
9.0k points

2 Answers

1 vote
Hello,

Using Thalès,

AE/ED=AB/DC

(2x+4)/(x+4)=9/6
(2x+4)/(x+4)=3/2
(2x+4)*2=(x+4)*3
4x+8=3x+12
x=4
==>x+4=ED=4+4=8

answered
User Alister Scott
by
8.2k points
3 votes

9/2x+4 = 6/x+4

9x+36 = 12x+24

3x=12

x = 4

4+4 = 8

ED = 8

answered
User Matt Hill
by
7.7k points
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