I need help with geometry finding x please help ASAP anyone

x=11

Step-by-step explanation:

Use the intersecting two secant theorem,

Theorem: If two secants are drawn from a common point outside a circle and the segments are labeled as below, then a(a+b)=c(c+d).



where a is length of the outer top length, b is the length of the inner top length

c is the length of the outer bottom length, c is the length of the inner bottom length.

a=6

b=15

c=7

d=x

boxplot e is the answer