Question

If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x

Answer 1

X = 5 which gives you your answer. Sorry for no work I'm not sure how to do it.

Answer 2

Given that D is the mid point of CE ,


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


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Therefore, the value of x is 5