Question

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Answer 1

Answer: The value of x =2 units.

Step-by-step explanation:

Since we have given that

AD= CD

BE= EA

So, we get that D and E are the mid-points of AC and AB respectively.

So, by Mid- point theorem , which states that the line joining the two midpoints is parallel to third side and it is half in length of third side i.e.

`DE=(1)/(2)BC`

So, we put the value of DE and BC ,

`5x-3=(1)/(2)* (x+12)\\\\2(5x-3)=x+12\\\\10x-6=x+12\\\\10x-x=12+6\\\\9x=18\\\\x=(18)/(9)=2`

Hence, the value of x =2 units.