# How do you solve sqrt( x+10)=7?

##### 1 Answer
Oct 17, 2015

$x = 39$

#### Explanation:

Square both sides to get $x + 10 = {7}^{2} = 49$. Then subtract 10 from both sides to get $x = 39$. You can check this by substitution: $\sqrt{39 + 10} = \sqrt{49} = 7$.