# How do you solve 4 + 2x < x + 13?

Aug 10, 2015

Answer is $x < 9$ or x in (-oo;9)

#### Explanation:

$4 + 2 x < x + 13$

You begin with moving all expressions with $x$ to left and all numbers to right:

$2 x - x < - 4 + 13$

Now you just have to add expressions on both sides to get the answer:

$x < 9$