Answer:
x = 64
Step-by-step explanation:
The triangles are similar, so we'll set up a proportion:
=> [tex]\frac{2}{15} =\frac{8}{x-4}[/tex]
Cross Multiplying
=> 2(x-4) = 15 x 8
=> 2x-8 = 120
=> 2x = 120+8
=> 2x = 128
Dividing both sides by 2
=> x = 64