10 + n = 1/3 ( 6n - 3 )

n = 11

Step-by-step explanation:

10 + n = 1/3 ( 6n - 3 )

Distribute

10 +n = 2n -1

Subtract n from each side

10 + n-n = 2n-n - 1

10 = n-1

Add 1 from each side

10+1 = n-1+1

11 =n

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,