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loran55667
11.07.2019 •
Mathematics
If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x
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Ответ:
So D will bisect CE, it means the length of DE and CD is equal.
=> DE + CD = CE
As DE and CD are equal,
=> DE + DE = CE
=> 2 DE = CE
Putting values from the question,
=> 2( 7x - 1 ) = 10x + 18
=> 14x - 2 = 10x + 18
=> 14x - 10x = 18 + 2
=> 4x = 20
=> x = 20 / 4
=> x = 10 / 2
=> x = 5
Therefore, the value of x is 5
Ответ:
Step-by-step explanatio:ES XNC437001XX