√x/2 +√y/4 =3/8 √y/6 -√z/2 =-5/6 √z/4 +√x/3 =5/6 Help

[tex] \frac{ \sqrt{x} }{2} + \frac{ \sqrt{y} }{4} = \frac{3}{4} \\ \frac{4 \sqrt{x} }{4} + \frac{ 2\sqrt{y} }{4} = \frac{3}{4} \\ \sqrt{x} + \frac{ \sqrt{y} }{2} = \frac{3}{4} \\ \\ [/tex]
?????