# If $$x^{2} - 5 = 20$$, what is the value of x?

5

Explanation

First, add 5 to both sides to isolate x: $$x^{2} - 5 + 5 = 20 + 5$$

$$x^{2} = 25$$

Then, take the square root of both sides to solve for x, $$\frac{{\sqrt x }}{{{x^2}}} = \frac{{\sqrt x }}{{25}}$$, x = 5