Question

Solve similar triangles (advanced)
solve for x

Answer 1

x = 27/8

Explanation:

We can write a ratio to solve

x 3

------- = ----------

x+9 11

Using cross products

x*11 = 3(x+9)

11x = 3x+27

Subtract 3x from each side

8x = 27

8x/8 = 27/8

x = 27/8