# "The sum of 4 and x is 10" in mathematical symbols is?

May 8, 2018

$4 + x = 10$

#### Explanation:

The word sum means to add.

$4 + x$

The word is means equal to.

$4 + x = 10$

We can solve this for $x$ by subtracting $4$ from both sides.

$4 - 4 + x = 10 - 4$

Cancel $4$ on the left-hand side.

$\textcolor{red}{\cancel{\textcolor{b l a c k}{4}}} - \textcolor{red}{\cancel{\textcolor{b l a c k}{4}}} + x = 10 - 4$

Simplify.

$x = 6$