Question

8/x=x/18

Answer 1

8*18=x^2
16*9=x^2
4*3=x
x=12

Answer 2

\[8/x=x/18\]\[(18)(x)(8/x)=(x/18)(18)(x)\]\[144=x^2\]\[\sqrt{144}=\sqrt{x^2}\]\[12=x\]