Consider the third equation. Multiply $5$ and $5$ to get $25$.
$$y=25$$
Consider the second equation. Insert the known values of variables into the equation.
$$z=2\times 25$$
Multiply $2$ and $25$ to get $50$.
$$z=50$$
Consider the first equation. Insert the known values of variables into the equation.
$$x=\sqrt{50}$$
Factor $50=5^{2}\times 2$. Rewrite the square root of the product $\sqrt{5^{2}\times 2}$ as the product of square roots $\sqrt{5^{2}}\sqrt{2}$. Take the square root of $5^{2}$.
$$x=5\sqrt{2}$$
Consider the fourth equation. Insert the known values of variables into the equation.
