# Question #bb658

Oct 17, 2016

$x = 11 \text{ or } x = - 11$

#### Explanation:

You can change the equation so as to isolate the $x$-term on the left.

$x = \sqrt{121} \text{ } \leftarrow$ now find the square root.

$x = 11$

Usually we consider both the positive and negative square root.

$x = - 11$ is also a solution.