Answer:
x=1
Explanation:
Given is a picture of a parallelogram ABCD
As per properties of parallelograms opposite sides are parallel and equal.
Two opposite sides are given as 12.
But another pair is given in terms of x as 16+2x and 10+8x
Since opposite sides would be parallel we have
16+2x =10+8x
Simplify to get
6x =6
or x=1
Verify:
The top side = 16+2x =18
The bottom side 10+8x = 10+8 =18
Thus both are equal, thus verified