# How do you simplify 5x+4+9x?

Nov 2, 2015

$2 \left(7 x + 2\right)$

#### Explanation:

Here,

Since 5 and 9 have same variable $x$, you can add these two. But since 4 has no variable and is different from a term containing x, you cannot add it with other terms.

SO,

=$5 x + 4 + 9 x$
= $14 x + 4$

You can even take a digit common. In this case 2 goes common for both terms so

= $2 \left(7 x + 2\right)$