Question

Find x. The units are in feet.

Answer 1

Using similarity properties you know that:

x/12 = (x+6)/18

Now you can solve that equation:

18x = 12(x+6)

18x = 12x + 12*6

18x - 12x = 72

6x = 72

x = 72/6

x= 12

Answer: x is 12 feet